1 /*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eloop.h"
13 #include "common/defs.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/ieee802_11_common.h"
16 #include "common/wpa_ctrl.h"
17 #include "crypto/sha256.h"
18 #include "crypto/crypto.h"
19 #include "wps/wps_i.h"
20 #include "p2p_i.h"
21 #include "p2p.h"
22
23 #ifdef OPEN_HARMONY_MIRACAST_SINK_OPT
24 #include "hm_miracast_sink.h"
25 #endif
26
27 #ifdef CONFIG_OPEN_HARMONY_P2P_DEV_NOTIFY
28 #include "parse_miracast_ie.h"
29 #endif
30
31 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
32 static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
33 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
34 const u8 *sa, const u8 *data, size_t len,
35 int rx_freq);
36 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
37 const u8 *sa, const u8 *data,
38 size_t len);
39
40 #if !defined(CONFIG_OPEN_HARMONY_PATCH) || !defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
41 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
42 #endif
43 static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
44
45
46 /*
47 * p2p_scan recovery timeout
48 *
49 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
50 * timeout for this to avoid hitting P2P timeout unnecessarily.
51 */
52 #define P2P_SCAN_TIMEOUT 35
53
54 /**
55 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
56 * entries will be removed
57 */
58 #ifndef P2P_PEER_EXPIRATION_AGE
59 #define P2P_PEER_EXPIRATION_AGE 60
60 #endif /* P2P_PEER_EXPIRATION_AGE */
61
62 #ifdef OPEN_HARMONY_P2P_ONEHOP_FIND
63 #define ONEHOP_LISTEHTIME_USEC (20 * 1000)
64 #endif
65
66 #ifdef CONFIG_OHOS_P2P
67 #define P2P_CONNECT_TIMEOUT_USEC (200 *10000)
68 #endif
69
70 #ifdef HARMONY_P2P_CONNECTIVITY_PATCH
71 #define P2P_CONNECT_TIMEOUT_MAX_USEC (200 * 10000)
72 #else
73 #define P2P_CONNECT_TIMEOUT_DEFAULT_USEC (500 * 1000)
74 #endif
75
76 #define P2P_CONNECT_TIMEOUT_MIN_USEC (100 * 1000)
77
78 #ifdef CONFIG_OPEN_HARMONY_P2P_DEV_NOTIFY
79 struct wpabuf *g_pvt_wfd_elems = NULL;
80
is_pvt_wfd_elems_validnull81 int is_pvt_wfd_elems_valid()
82 {
83 return g_pvt_wfd_elems != NULL;
84 }
85
wfd_add_pvt_elem_hex(char **wfd_dev_info_hex)86 void wfd_add_pvt_elem_hex(char **wfd_dev_info_hex)
87 {
88 wifi_display_add_pvt_elem_hex(g_pvt_wfd_elems, wfd_dev_info_hex);
89 }
90
get_pvt_wfd_elems(const u8 *ies, size_t ies_len)91 static void get_pvt_wfd_elems(const u8 *ies, size_t ies_len)
92 {
93 p2p_get_pvt_wfd_elems(&g_pvt_wfd_elems, ies, ies_len);
94 }
95
free_pvt_wfd_elemsnull96 static void free_pvt_wfd_elems()
97 {
98 wpabuf_free(g_pvt_wfd_elems);
99 g_pvt_wfd_elems = NULL;
100 }
101 #endif
102
p2p_expire_peers(struct p2p_data *p2p)103 void p2p_expire_peers(struct p2p_data *p2p)
104 {
105 struct p2p_device *dev, *n;
106 struct os_reltime now;
107 size_t i;
108
109 os_get_reltime(&now);
110 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
111 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
112 continue;
113
114 if (dev == p2p->go_neg_peer) {
115 /*
116 * GO Negotiation is in progress with the peer, so
117 * don't expire the peer entry until GO Negotiation
118 * fails or times out.
119 */
120 continue;
121 }
122
123 if (p2p->cfg->go_connected &&
124 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
125 dev->info.p2p_device_addr)) {
126 /*
127 * We are connected as a client to a group in which the
128 * peer is the GO, so do not expire the peer entry.
129 */
130 os_get_reltime(&dev->last_seen);
131 continue;
132 }
133
134 for (i = 0; i < p2p->num_groups; i++) {
135 if (p2p_group_is_client_connected(
136 p2p->groups[i], dev->info.p2p_device_addr))
137 break;
138 }
139 if (i < p2p->num_groups) {
140 /*
141 * The peer is connected as a client in a group where
142 * we are the GO, so do not expire the peer entry.
143 */
144 os_get_reltime(&dev->last_seen);
145 continue;
146 }
147
148 p2p_dbg(p2p, "Expiring old peer entry " MACSTR_SEC,
149 MAC2STR_SEC(dev->info.p2p_device_addr));
150 dl_list_del(&dev->list);
151 p2p_device_free(p2p, dev);
152 }
153 }
154
155
p2p_state_txt(int state)156 static const char * p2p_state_txt(int state)
157 {
158 switch (state) {
159 case P2P_IDLE:
160 return "IDLE";
161 case P2P_SEARCH:
162 return "SEARCH";
163 case P2P_CONNECT:
164 return "CONNECT";
165 case P2P_CONNECT_LISTEN:
166 return "CONNECT_LISTEN";
167 case P2P_GO_NEG:
168 return "GO_NEG";
169 case P2P_LISTEN_ONLY:
170 return "LISTEN_ONLY";
171 case P2P_WAIT_PEER_CONNECT:
172 return "WAIT_PEER_CONNECT";
173 case P2P_WAIT_PEER_IDLE:
174 return "WAIT_PEER_IDLE";
175 case P2P_SD_DURING_FIND:
176 return "SD_DURING_FIND";
177 case P2P_PROVISIONING:
178 return "PROVISIONING";
179 case P2P_PD_DURING_FIND:
180 return "PD_DURING_FIND";
181 case P2P_INVITE:
182 return "INVITE";
183 case P2P_INVITE_LISTEN:
184 return "INVITE_LISTEN";
185 default:
186 return "?";
187 }
188 }
189
190
p2p_get_state_txt(struct p2p_data *p2p)191 const char * p2p_get_state_txt(struct p2p_data *p2p)
192 {
193 return p2p_state_txt(p2p->state);
194 }
195
196
p2p_get_p2ps_adv_list(struct p2p_data *p2p)197 struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p)
198 {
199 return p2p ? p2p->p2ps_adv_list : NULL;
200 }
201
202
p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr)203 void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr)
204 {
205 if (p2p && intended_addr)
206 os_memcpy(p2p->intended_addr, intended_addr, ETH_ALEN);
207 }
208
209
p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)210 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
211 {
212 struct p2p_device *dev = NULL;
213
214 if (!addr || !p2p)
215 return 0;
216
217 dev = p2p_get_device(p2p, addr);
218 if (dev)
219 return dev->wps_prov_info;
220 else
221 return 0;
222 }
223
224
p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)225 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
226 {
227 struct p2p_device *dev = NULL;
228
229 if (!addr || !p2p)
230 return;
231
232 dev = p2p_get_device(p2p, addr);
233 if (dev)
234 dev->wps_prov_info = 0;
235 }
236
237
p2p_set_state(struct p2p_data *p2p, int new_state)238 void p2p_set_state(struct p2p_data *p2p, int new_state)
239 {
240 p2p_dbg(p2p, "State %s -> %s",
241 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
242 p2p->state = new_state;
243
244 if (new_state == P2P_IDLE && p2p->pending_channel) {
245 p2p_dbg(p2p, "Apply change in listen channel");
246 p2p->cfg->reg_class = p2p->pending_reg_class;
247 p2p->cfg->channel = p2p->pending_channel;
248 p2p->pending_reg_class = 0;
249 p2p->pending_channel = 0;
250 }
251 }
252
253
p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)254 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
255 {
256 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
257 p2p_state_txt(p2p->state), sec, usec);
258 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
259 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
260 }
261
262
p2p_clear_timeout(struct p2p_data *p2p)263 void p2p_clear_timeout(struct p2p_data *p2p)
264 {
265 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
266 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
267 }
268
269
p2p_go_neg_failed(struct p2p_data *p2p, int status)270 void p2p_go_neg_failed(struct p2p_data *p2p, int status)
271 {
272 struct p2p_go_neg_results res;
273 struct p2p_device *peer = p2p->go_neg_peer;
274
275 if (!peer)
276 return;
277
278 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
279 if (p2p->state != P2P_SEARCH) {
280 /*
281 * Clear timeouts related to GO Negotiation if no new p2p_find
282 * has been started.
283 */
284 p2p_clear_timeout(p2p);
285 p2p_set_state(p2p, P2P_IDLE);
286 }
287
288 peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
289 peer->wps_method = WPS_NOT_READY;
290 peer->oob_pw_id = 0;
291 wpabuf_free(peer->go_neg_conf);
292 peer->go_neg_conf = NULL;
293 p2p->go_neg_peer = NULL;
294
295 os_memset(&res, 0, sizeof(res));
296 res.status = status;
297 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
298 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
299 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
300 }
301
302
p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)303 static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
304 {
305 unsigned int r, tu;
306 int freq;
307 struct wpabuf *ies;
308
309 p2p_dbg(p2p, "Starting short listen state (state=%s)",
310 p2p_state_txt(p2p->state));
311
312 if (p2p->pending_listen_freq) {
313 /* We have a pending p2p_listen request */
314 p2p_dbg(p2p, "p2p_listen command pending already");
315 return;
316 }
317
318 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
319 if (freq < 0) {
320 p2p_dbg(p2p, "Unknown regulatory class/channel");
321 return;
322 }
323
324 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
325 r = 0;
326 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
327 p2p->min_disc_int) * 100;
328 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
329 tu = p2p->max_disc_tu;
330 if (!dev_disc && tu < 100)
331 tu = 100; /* Need to wait in non-device discovery use cases */
332 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
333 tu = p2p->cfg->max_listen * 1000 / 1024;
334
335 if (tu == 0) {
336 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
337 p2p_set_timeout(p2p, 0, 0);
338 return;
339 }
340
341 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
342 if (ies == NULL)
343 return;
344
345 p2p->pending_listen_freq = freq;
346 p2p->pending_listen_sec = 0;
347 #ifdef OPEN_HARMONY_P2P_ONEHOP_FIND
348 p2p->pending_listen_usec = p2p->pvt_p2p_service ==
349 P2P_ONEHOP_FIND ? ONEHOP_LISTEHTIME_USEC : 1024 * tu;
350 #else
351 p2p->pending_listen_usec = 1024 * tu;
352 #endif
353
354 #ifdef OPEN_HARMONY_P2P_ONEHOP_FIND
355 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq,
356 p2p->pending_listen_usec / 1000, ies) < 0) {
357 #else
358 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
359 ies) < 0) {
360 #endif
361 p2p_dbg(p2p, "Failed to start listen mode");
362 p2p->pending_listen_freq = 0;
363 }
364 wpabuf_free(ies);
365 }
366
367
368 int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
369 {
370 int freq;
371 struct wpabuf *ies;
372
373 p2p_dbg(p2p, "Going to listen(only) state");
374
375 if (p2p->pending_listen_freq) {
376 /* We have a pending p2p_listen request */
377 p2p_dbg(p2p, "p2p_listen command pending already");
378 return -1;
379 }
380
381 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
382 if (freq < 0) {
383 p2p_dbg(p2p, "Unknown regulatory class/channel");
384 return -1;
385 }
386
387 p2p->pending_listen_sec = timeout / 1000;
388 p2p->pending_listen_usec = (timeout % 1000) * 1000;
389
390 if (p2p->p2p_scan_running) {
391 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
392 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
393 return 0;
394 }
395 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
396 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
397 return 0;
398 }
399
400 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
401 if (ies == NULL)
402 return -1;
403
404 p2p->pending_listen_freq = freq;
405
406 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
407 p2p_dbg(p2p, "Failed to start listen mode");
408 p2p->pending_listen_freq = 0;
409 wpabuf_free(ies);
410 return -1;
411 }
412 wpabuf_free(ies);
413
414 p2p_set_state(p2p, P2P_LISTEN_ONLY);
415
416 return 0;
417 }
418
419
420 static void p2p_device_clear_reported(struct p2p_data *p2p)
421 {
422 struct p2p_device *dev;
423 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
424 dev->flags &= ~P2P_DEV_REPORTED;
425 dev->sd_reqs = 0;
426 }
427 }
428
429
430 /**
431 * p2p_get_device - Fetch a peer entry
432 * @p2p: P2P module context from p2p_init()
433 * @addr: P2P Device Address of the peer
434 * Returns: Pointer to the device entry or %NULL if not found
435 */
436 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
437 {
438 struct p2p_device *dev;
439 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
440 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
441 return dev;
442 }
443 return NULL;
444 }
445
446
447 /**
448 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
449 * @p2p: P2P module context from p2p_init()
450 * @addr: P2P Interface Address of the peer
451 * Returns: Pointer to the device entry or %NULL if not found
452 */
453 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
454 const u8 *addr)
455 {
456 struct p2p_device *dev;
457 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
458 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
459 return dev;
460 }
461 return NULL;
462 }
463
464
465 /**
466 * p2p_create_device - Create a peer entry
467 * @p2p: P2P module context from p2p_init()
468 * @addr: P2P Device Address of the peer
469 * Returns: Pointer to the device entry or %NULL on failure
470 *
471 * If there is already an entry for the peer, it will be returned instead of
472 * creating a new one.
473 */
474 static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
475 const u8 *addr)
476 {
477 struct p2p_device *dev, *oldest = NULL;
478 size_t count = 0;
479
480 dev = p2p_get_device(p2p, addr);
481 if (dev)
482 return dev;
483
484 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
485 count++;
486 if (oldest == NULL ||
487 os_reltime_before(&dev->last_seen, &oldest->last_seen))
488 oldest = dev;
489 }
490 if (count + 1 > p2p->cfg->max_peers && oldest) {
491 p2p_dbg(p2p,
492 "Remove oldest peer entry to make room for a new peer "
493 MACSTR_SEC, MAC2STR_SEC(oldest->info.p2p_device_addr));
494 dl_list_del(&oldest->list);
495 p2p_device_free(p2p, oldest);
496 }
497
498 dev = os_zalloc(sizeof(*dev));
499 if (dev == NULL)
500 return NULL;
501 dl_list_add(&p2p->devices, &dev->list);
502 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
503
504 return dev;
505 }
506
507
508 static void p2p_copy_client_info(struct p2p_device *dev,
509 struct p2p_client_info *cli)
510 {
511 p2p_copy_filter_devname(dev->info.device_name,
512 sizeof(dev->info.device_name),
513 cli->dev_name, cli->dev_name_len);
514 dev->info.dev_capab = cli->dev_capab;
515 dev->info.config_methods = cli->config_methods;
516 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
517 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
518 if (dev->info.wps_sec_dev_type_list_len > WPS_SEC_DEV_TYPE_MAX_LEN)
519 dev->info.wps_sec_dev_type_list_len = WPS_SEC_DEV_TYPE_MAX_LEN;
520 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
521 dev->info.wps_sec_dev_type_list_len);
522 }
523
524
525 static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
526 const u8 *go_interface_addr, int freq,
527 const u8 *gi, size_t gi_len,
528 struct os_reltime *rx_time)
529 {
530 struct p2p_group_info info;
531 size_t c;
532 struct p2p_device *dev;
533
534 if (gi == NULL)
535 return 0;
536
537 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
538 return -1;
539
540 /*
541 * Clear old data for this group; if the devices are still in the
542 * group, the information will be restored in the loop following this.
543 */
544 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
545 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
546 ETH_ALEN) == 0) {
547 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
548 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
549 }
550 }
551
552 for (c = 0; c < info.num_clients; c++) {
553 struct p2p_client_info *cli = &info.client[c];
554 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
555 ETH_ALEN) == 0)
556 continue; /* ignore our own entry */
557 dev = p2p_get_device(p2p, cli->p2p_device_addr);
558 if (dev) {
559 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
560 P2P_DEV_PROBE_REQ_ONLY)) {
561 /*
562 * Update information since we have not
563 * received this directly from the client.
564 */
565 p2p_copy_client_info(dev, cli);
566 } else {
567 /*
568 * Need to update P2P Client Discoverability
569 * flag since it is valid only in P2P Group
570 * Info attribute.
571 */
572 dev->info.dev_capab &=
573 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
574 dev->info.dev_capab |=
575 cli->dev_capab &
576 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
577 }
578 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
579 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
580 }
581 } else {
582 dev = p2p_create_device(p2p, cli->p2p_device_addr);
583 if (dev == NULL)
584 continue;
585 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
586 p2p_copy_client_info(dev, cli);
587 dev->oper_freq = freq;
588 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
589 dev->info.p2p_device_addr,
590 &dev->info, 1);
591 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
592 }
593
594 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
595 ETH_ALEN);
596 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
597 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
598 os_memcpy(dev->member_in_go_iface, go_interface_addr,
599 ETH_ALEN);
600 dev->flags |= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT;
601 }
602
603 return 0;
604 }
605
606
607 static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
608 int probe_req, const struct p2p_message *msg)
609 {
610 os_memcpy(dev->info.device_name, msg->device_name,
611 sizeof(dev->info.device_name));
612
613 if (msg->manufacturer &&
614 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
615 os_memset(dev->info.manufacturer, 0,
616 sizeof(dev->info.manufacturer));
617 os_memcpy(dev->info.manufacturer, msg->manufacturer,
618 msg->manufacturer_len);
619 }
620
621 if (msg->model_name &&
622 msg->model_name_len < sizeof(dev->info.model_name)) {
623 os_memset(dev->info.model_name, 0,
624 sizeof(dev->info.model_name));
625 os_memcpy(dev->info.model_name, msg->model_name,
626 msg->model_name_len);
627 }
628
629 if (msg->model_number &&
630 msg->model_number_len < sizeof(dev->info.model_number)) {
631 os_memset(dev->info.model_number, 0,
632 sizeof(dev->info.model_number));
633 os_memcpy(dev->info.model_number, msg->model_number,
634 msg->model_number_len);
635 }
636
637 if (msg->serial_number &&
638 msg->serial_number_len < sizeof(dev->info.serial_number)) {
639 os_memset(dev->info.serial_number, 0,
640 sizeof(dev->info.serial_number));
641 os_memcpy(dev->info.serial_number, msg->serial_number,
642 msg->serial_number_len);
643 }
644
645 if (msg->pri_dev_type)
646 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
647 sizeof(dev->info.pri_dev_type));
648 else if (msg->wps_pri_dev_type)
649 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
650 sizeof(dev->info.pri_dev_type));
651
652 if (msg->wps_sec_dev_type_list) {
653 os_memcpy(dev->info.wps_sec_dev_type_list,
654 msg->wps_sec_dev_type_list,
655 msg->wps_sec_dev_type_list_len);
656 dev->info.wps_sec_dev_type_list_len =
657 msg->wps_sec_dev_type_list_len;
658 }
659
660 if (msg->capability) {
661 /*
662 * P2P Client Discoverability bit is reserved in all frames
663 * that use this function, so do not change its value here.
664 */
665 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
666 dev->info.dev_capab |= msg->capability[0] &
667 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
668 dev->info.group_capab = msg->capability[1];
669 }
670
671 if (msg->ext_listen_timing) {
672 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
673 dev->ext_listen_interval =
674 WPA_GET_LE16(msg->ext_listen_timing + 2);
675 }
676
677 if (!probe_req) {
678 u16 new_config_methods;
679 new_config_methods = msg->config_methods ?
680 msg->config_methods : msg->wps_config_methods;
681 if (new_config_methods &&
682 dev->info.config_methods != new_config_methods) {
683 p2p_dbg(p2p, "Update peer " MACSTR_SEC
684 " config_methods 0x%x -> 0x%x",
685 MAC2STR_SEC(dev->info.p2p_device_addr),
686 dev->info.config_methods,
687 new_config_methods);
688 dev->info.config_methods = new_config_methods;
689 }
690 }
691 }
692
693
694 static void p2p_update_peer_vendor_elems(struct p2p_device *dev, const u8 *ies,
695 size_t ies_len)
696 {
697 const u8 *pos, *end;
698 u8 id, len;
699
700 wpabuf_free(dev->info.vendor_elems);
701 dev->info.vendor_elems = NULL;
702
703 end = ies + ies_len;
704
705 for (pos = ies; end - pos > 1; pos += len) {
706 id = *pos++;
707 len = *pos++;
708
709 if (len > end - pos)
710 break;
711
712 if (id != WLAN_EID_VENDOR_SPECIFIC || len < 3)
713 continue;
714
715 if (len >= 4) {
716 u32 type = WPA_GET_BE32(pos);
717
718 if (type == WPA_IE_VENDOR_TYPE ||
719 type == WMM_IE_VENDOR_TYPE ||
720 type == WPS_IE_VENDOR_TYPE ||
721 type == P2P_IE_VENDOR_TYPE ||
722 type == WFD_IE_VENDOR_TYPE)
723 continue;
724 }
725
726 /* Unknown vendor element - make raw IE data available */
727 if (wpabuf_resize(&dev->info.vendor_elems, 2 + len) < 0)
728 break;
729 wpabuf_put_data(dev->info.vendor_elems, pos - 2, 2 + len);
730 if (wpabuf_size(dev->info.vendor_elems) > 2000)
731 break;
732 }
733 }
734
735
736 static int p2p_compare_wfd_info(struct p2p_device *dev,
737 const struct p2p_message *msg)
738 {
739 if (dev->info.wfd_subelems && msg->wfd_subelems) {
740 if (dev->info.wfd_subelems->used != msg->wfd_subelems->used)
741 return 1;
742
743 return os_memcmp(dev->info.wfd_subelems->buf,
744 msg->wfd_subelems->buf,
745 dev->info.wfd_subelems->used);
746 }
747 if (dev->info.wfd_subelems || msg->wfd_subelems)
748 return 1;
749
750 return 0;
751 }
752
753
754 /**
755 * p2p_add_device - Add peer entries based on scan results or P2P frames
756 * @p2p: P2P module context from p2p_init()
757 * @addr: Source address of Beacon or Probe Response frame (may be either
758 * P2P Device Address or P2P Interface Address)
759 * @level: Signal level (signal strength of the received frame from the peer)
760 * @freq: Frequency on which the Beacon or Probe Response frame was received
761 * @rx_time: Time when the result was received
762 * @ies: IEs from the Beacon or Probe Response frame
763 * @ies_len: Length of ies buffer in octets
764 * @scan_res: Whether this was based on scan results
765 * Returns: 0 on success, -1 on failure
766 *
767 * If the scan result is for a GO, the clients in the group will also be added
768 * to the peer table. This function can also be used with some other frames
769 * like Provision Discovery Request that contains P2P Capability and P2P Device
770 * Info attributes.
771 */
772 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
773 struct os_reltime *rx_time, int level, const u8 *ies,
774 size_t ies_len, int scan_res)
775 {
776 struct p2p_device *dev;
777 struct p2p_message msg;
778 const u8 *p2p_dev_addr;
779 int wfd_changed;
780 int dev_name_changed;
781 int i;
782 struct os_reltime time_now;
783
784 os_memset(&msg, 0, sizeof(msg));
785 if (p2p_parse_ies(ies, ies_len, &msg)) {
786 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
787 p2p_parse_free(&msg);
788 return -1;
789 }
790
791 if (msg.p2p_device_addr)
792 p2p_dev_addr = msg.p2p_device_addr;
793 else if (msg.device_id)
794 p2p_dev_addr = msg.device_id;
795 else {
796 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
797 p2p_parse_free(&msg);
798 return -1;
799 }
800
801 if (!is_zero_ether_addr(p2p->peer_filter) &&
802 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
803 p2p_dbg(p2p, "Do not add peer filter for " MACSTR_SEC
804 " due to peer filter", MAC2STR_SEC(p2p_dev_addr));
805 p2p_parse_free(&msg);
806 return 0;
807 }
808
809 dev = p2p_create_device(p2p, p2p_dev_addr);
810 if (dev == NULL) {
811 p2p_parse_free(&msg);
812 return -1;
813 }
814
815 if (rx_time == NULL) {
816 os_get_reltime(&time_now);
817 rx_time = &time_now;
818 }
819
820 /*
821 * Update the device entry only if the new peer
822 * entry is newer than the one previously stored, or if
823 * the device was previously seen as a P2P Client in a group
824 * and the new entry isn't older than a threshold.
825 */
826 if (dev->last_seen.sec > 0 &&
827 os_reltime_before(rx_time, &dev->last_seen) &&
828 (!(dev->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT) ||
829 os_reltime_expired(&dev->last_seen, rx_time,
830 P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD))) {
831 p2p_dbg(p2p,
832 "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
833 (unsigned int) rx_time->sec,
834 (unsigned int) rx_time->usec,
835 (unsigned int) dev->last_seen.sec,
836 (unsigned int) dev->last_seen.usec,
837 dev->flags);
838 p2p_parse_free(&msg);
839 return -1;
840 }
841
842 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
843
844 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY |
845 P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT);
846
847 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
848 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
849 if (msg.ssid &&
850 msg.ssid[1] <= sizeof(dev->oper_ssid) &&
851 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
852 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
853 != 0)) {
854 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
855 dev->oper_ssid_len = msg.ssid[1];
856 }
857
858 wpabuf_free(dev->info.p2ps_instance);
859 dev->info.p2ps_instance = NULL;
860 if (msg.adv_service_instance && msg.adv_service_instance_len)
861 dev->info.p2ps_instance = wpabuf_alloc_copy(
862 msg.adv_service_instance, msg.adv_service_instance_len);
863
864 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
865 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
866 int ds_freq;
867 if (*msg.ds_params == 14)
868 ds_freq = 2484;
869 else
870 ds_freq = 2407 + *msg.ds_params * 5;
871 if (freq != ds_freq) {
872 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
873 freq, ds_freq);
874 freq = ds_freq;
875 }
876 }
877
878 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
879 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
880 MACSTR_SEC " %d -> %d MHz (DS param %d)",
881 MAC2STR_SEC(dev->info.p2p_device_addr), dev->listen_freq,
882 freq, msg.ds_params ? *msg.ds_params : -1);
883 }
884 if (scan_res) {
885 dev->listen_freq = freq;
886 if (msg.group_info)
887 dev->oper_freq = freq;
888 }
889 dev->info.level = level;
890
891 dev_name_changed = os_strncmp(dev->info.device_name, msg.device_name,
892 WPS_DEV_NAME_MAX_LEN) != 0;
893
894 p2p_copy_wps_info(p2p, dev, 0, &msg);
895
896 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
897 wpabuf_free(dev->info.wps_vendor_ext[i]);
898 dev->info.wps_vendor_ext[i] = NULL;
899 }
900
901 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
902 if (msg.wps_vendor_ext[i] == NULL)
903 break;
904 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
905 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
906 if (dev->info.wps_vendor_ext[i] == NULL)
907 break;
908 }
909
910 wfd_changed = p2p_compare_wfd_info(dev, &msg);
911
912 if (wfd_changed) {
913 wpabuf_free(dev->info.wfd_subelems);
914 if (msg.wfd_subelems)
915 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
916 else
917 dev->info.wfd_subelems = NULL;
918 }
919
920 if (scan_res) {
921 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
922 msg.group_info, msg.group_info_len,
923 rx_time);
924 }
925
926 p2p_parse_free(&msg);
927
928 p2p_update_peer_vendor_elems(dev, ies, ies_len);
929
930 if (dev->flags & P2P_DEV_REPORTED && !wfd_changed &&
931 !dev_name_changed &&
932 (!msg.adv_service_instance ||
933 (dev->flags & P2P_DEV_P2PS_REPORTED)))
934 return 0;
935
936 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
937 freq, (unsigned int) rx_time->sec,
938 (unsigned int) rx_time->usec);
939 if (dev->flags & P2P_DEV_USER_REJECTED) {
940 p2p_dbg(p2p, "Do not report rejected device");
941 return 0;
942 }
943
944 if (dev->info.config_methods == 0 &&
945 (freq == 2412 || freq == 2437 || freq == 2462)) {
946 /*
947 * If we have only seen a Beacon frame from a GO, we do not yet
948 * know what WPS config methods it supports. Since some
949 * applications use config_methods value from P2P-DEVICE-FOUND
950 * events, postpone reporting this peer until we've fully
951 * discovered its capabilities.
952 *
953 * At least for now, do this only if the peer was detected on
954 * one of the social channels since that peer can be easily be
955 * found again and there are no limitations of having to use
956 * passive scan on this channels, so this can be done through
957 * Probe Response frame that includes the config_methods
958 * information.
959 */
960 p2p_dbg(p2p, "Do not report peer " MACSTR_SEC
961 " with unknown config methods", MAC2STR_SEC(addr));
962 return 0;
963 }
964
965 #ifdef CONFIG_OPEN_HARMONY_P2P_DEV_NOTIFY
966 get_pvt_wfd_elems(ies, ies_len);
967 #endif
968
969 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
970 !(dev->flags & P2P_DEV_REPORTED_ONCE));
971
972 #ifdef CONFIG_OPEN_HARMONY_P2P_DEV_NOTIFY
973 free_pvt_wfd_elems();
974 #endif
975
976 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
977
978 if (msg.adv_service_instance)
979 dev->flags |= P2P_DEV_P2PS_REPORTED;
980
981 return 0;
982 }
983
984
985 static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
986 {
987 int i;
988
989 if (p2p->go_neg_peer == dev) {
990 /*
991 * If GO Negotiation is in progress, report that it has failed.
992 */
993 p2p_go_neg_failed(p2p, -1);
994 }
995 if (p2p->invite_peer == dev)
996 p2p->invite_peer = NULL;
997 if (p2p->sd_peer == dev)
998 p2p->sd_peer = NULL;
999 if (p2p->pending_client_disc_go == dev)
1000 p2p->pending_client_disc_go = NULL;
1001
1002 /* dev_lost() device, but only if it was previously dev_found() */
1003 if (dev->flags & P2P_DEV_REPORTED_ONCE)
1004 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
1005 dev->info.p2p_device_addr);
1006
1007 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
1008 wpabuf_free(dev->info.wps_vendor_ext[i]);
1009 dev->info.wps_vendor_ext[i] = NULL;
1010 }
1011
1012 wpabuf_free(dev->info.wfd_subelems);
1013 #ifdef CONFIG_OPEN_HARMONY_P2P_DEV_NOTIFY
1014 wpabuf_free(g_pvt_wfd_elems);
1015 #endif
1016 wpabuf_free(dev->info.vendor_elems);
1017 wpabuf_free(dev->go_neg_conf);
1018 wpabuf_free(dev->info.p2ps_instance);
1019
1020 os_free(dev);
1021 }
1022
1023
1024 static int p2p_get_next_prog_freq(struct p2p_data *p2p)
1025 {
1026 struct p2p_channels *c;
1027 struct p2p_reg_class *cla;
1028 size_t cl, ch;
1029 int found = 0;
1030 u8 reg_class;
1031 u8 channel;
1032 int freq;
1033
1034 c = &p2p->cfg->channels;
1035 for (cl = 0; cl < c->reg_classes; cl++) {
1036 cla = &c->reg_class[cl];
1037 if (cla->reg_class != p2p->last_prog_scan_class)
1038 continue;
1039 for (ch = 0; ch < cla->channels; ch++) {
1040 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
1041 found = 1;
1042 break;
1043 }
1044 }
1045 if (found)
1046 break;
1047 }
1048
1049 if (!found) {
1050 /* Start from beginning */
1051 reg_class = c->reg_class[0].reg_class;
1052 channel = c->reg_class[0].channel[0];
1053 } else {
1054 /* Pick the next channel */
1055 ch++;
1056 if (ch == cla->channels) {
1057 cl++;
1058 if (cl == c->reg_classes)
1059 cl = 0;
1060 ch = 0;
1061 }
1062 reg_class = c->reg_class[cl].reg_class;
1063 channel = c->reg_class[cl].channel[ch];
1064 }
1065
1066 freq = p2p_channel_to_freq(reg_class, channel);
1067 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
1068 reg_class, channel, freq);
1069 p2p->last_prog_scan_class = reg_class;
1070 p2p->last_prog_scan_chan = channel;
1071
1072 if (freq == 2412 || freq == 2437 || freq == 2462)
1073 return 0; /* No need to add social channels */
1074 return freq;
1075 }
1076
1077
1078 static void p2p_search(struct p2p_data *p2p)
1079 {
1080 int freq = 0;
1081 enum p2p_scan_type type;
1082 u16 pw_id = DEV_PW_DEFAULT;
1083 int res;
1084
1085 if (p2p->drv_in_listen) {
1086 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
1087 return;
1088 }
1089 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1090
1091 if (p2p->find_pending_full &&
1092 (p2p->find_type == P2P_FIND_PROGRESSIVE ||
1093 p2p->find_type == P2P_FIND_START_WITH_FULL)) {
1094 type = P2P_SCAN_FULL;
1095 p2p_dbg(p2p, "Starting search (pending full scan)");
1096 p2p->find_pending_full = 0;
1097 } else if ((p2p->find_type == P2P_FIND_PROGRESSIVE &&
1098 (freq = p2p_get_next_prog_freq(p2p)) > 0) ||
1099 (p2p->find_type == P2P_FIND_START_WITH_FULL &&
1100 (freq = p2p->find_specified_freq) > 0)) {
1101 type = P2P_SCAN_SOCIAL_PLUS_ONE;
1102 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
1103 #ifdef OPEN_HARMONY_P2P_ONEHOP_FIND
1104 } else if (p2p->pvt_p2p_service == P2P_ONEHOP_FIND) {
1105 type = P2P_SCAN_POSSIBLE_CHANNEL;
1106 p2p_dbg(p2p, "Starting onehop search");
1107
1108 #endif
1109 } else {
1110 type = P2P_SCAN_SOCIAL;
1111 p2p_dbg(p2p, "Starting search");
1112 }
1113
1114 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
1115 p2p->num_req_dev_types, p2p->req_dev_types,
1116 p2p->find_dev_id, pw_id, p2p->include_6ghz);
1117 if (res < 0) {
1118 p2p_dbg(p2p, "Scan request schedule failed");
1119 p2p_continue_find(p2p);
1120 }
1121 }
1122
1123
1124 static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
1125 {
1126 struct p2p_data *p2p = eloop_ctx;
1127 p2p_dbg(p2p, "Find timeout -> stop");
1128 p2p_stop_find(p2p);
1129 }
1130
1131
1132 void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status)
1133 {
1134 if (status != 0) {
1135 p2p_dbg(p2p, "Scan request failed");
1136 /* Do continue find even for the first p2p_find_scan */
1137 #ifdef HARMONY_P2P_CONNECTIVITY_PATCH
1138 if (p2p->state == P2P_SEARCH)
1139 p2p_continue_find(p2p);
1140 #else
1141 p2p_continue_find(p2p);
1142 #endif
1143 } else {
1144 p2p_dbg(p2p, "Running p2p_scan");
1145 p2p->p2p_scan_running = 1;
1146 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1147 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1148 p2p, NULL);
1149 }
1150 }
1151
1152
1153 static int p2p_run_after_scan(struct p2p_data *p2p)
1154 {
1155 struct p2p_device *dev;
1156 enum p2p_after_scan op;
1157
1158 op = p2p->start_after_scan;
1159 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1160 switch (op) {
1161 case P2P_AFTER_SCAN_NOTHING:
1162 break;
1163 case P2P_AFTER_SCAN_LISTEN:
1164 p2p_dbg(p2p, "Start previously requested Listen state");
1165 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
1166 p2p->pending_listen_usec / 1000);
1167 return 1;
1168 case P2P_AFTER_SCAN_CONNECT:
1169 p2p_dbg(p2p, "Start previously requested connect with " MACSTR_SEC,
1170 MAC2STR_SEC(p2p->after_scan_peer));
1171 dev = p2p_get_device(p2p, p2p->after_scan_peer);
1172 if (dev == NULL) {
1173 p2p_dbg(p2p, "Peer not known anymore");
1174 break;
1175 }
1176 p2p_connect_send(p2p, dev);
1177 return 1;
1178 #ifdef CONFIG_OPEN_HARMONY_SPECIFIC_P2P_FIND
1179 case P2P_AFTER_SCAN_FULL_SCAN:
1180 p2p_search(p2p);
1181 return 1;
1182 #endif
1183 }
1184
1185 return 0;
1186 }
1187
1188
1189 static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1190 {
1191 struct p2p_data *p2p = eloop_ctx;
1192 int running;
1193 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
1194 running = p2p->p2p_scan_running;
1195 /* Make sure we recover from missed scan results callback */
1196 p2p->p2p_scan_running = 0;
1197
1198 if (running)
1199 p2p_run_after_scan(p2p);
1200 }
1201
1202
1203 static void p2p_free_req_dev_types(struct p2p_data *p2p)
1204 {
1205 p2p->num_req_dev_types = 0;
1206 os_free(p2p->req_dev_types);
1207 p2p->req_dev_types = NULL;
1208 }
1209
1210
1211 static int p2ps_gen_hash(struct p2p_data *p2p, const char *str, u8 *hash)
1212 {
1213 u8 buf[SHA256_MAC_LEN];
1214 char str_buf[256];
1215 const u8 *adv_array;
1216 size_t i, adv_len;
1217
1218 if (!str || !hash)
1219 return 0;
1220
1221 if (!str[0]) {
1222 os_memcpy(hash, p2p->wild_card_hash, P2PS_HASH_LEN);
1223 return 1;
1224 }
1225
1226 adv_array = (u8 *) str_buf;
1227 adv_len = os_strlen(str);
1228 if (adv_len >= sizeof(str_buf))
1229 return 0;
1230
1231 for (i = 0; i < adv_len; i++) {
1232 if (str[i] >= 'A' && str[i] <= 'Z')
1233 str_buf[i] = str[i] - 'A' + 'a';
1234 else
1235 str_buf[i] = str[i];
1236 }
1237
1238 if (sha256_vector(1, &adv_array, &adv_len, buf))
1239 return 0;
1240
1241 os_memcpy(hash, buf, P2PS_HASH_LEN);
1242 return 1;
1243 }
1244
1245
1246 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
1247 enum p2p_discovery_type type,
1248 unsigned int num_req_dev_types, const u8 *req_dev_types,
1249 const u8 *dev_id, unsigned int search_delay,
1250 u8 seek_count, const char **seek, int freq, bool include_6ghz)
1251 {
1252 int res;
1253 struct os_reltime start;
1254
1255 #ifdef CONFIG_OPEN_HARMONY_SPECIFIC_P2P_FIND
1256 struct wpa_supplicant *wpa_s = NULL;
1257 #endif
1258
1259 p2p_dbg(p2p, "Starting find (type=%d)", type);
1260 if (p2p->p2p_scan_running) {
1261 p2p_dbg(p2p, "p2p_scan is already running");
1262 }
1263
1264 p2p_free_req_dev_types(p2p);
1265 if (req_dev_types && num_req_dev_types) {
1266 p2p->req_dev_types = os_memdup(req_dev_types,
1267 num_req_dev_types *
1268 WPS_DEV_TYPE_LEN);
1269 if (p2p->req_dev_types == NULL)
1270 return -1;
1271 p2p->num_req_dev_types = num_req_dev_types;
1272 }
1273
1274 if (dev_id) {
1275 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1276 p2p->find_dev_id = p2p->find_dev_id_buf;
1277 } else
1278 p2p->find_dev_id = NULL;
1279 p2p->include_6ghz = p2p_wfd_enabled(p2p) && include_6ghz;
1280 if (seek_count == 0 || !seek) {
1281 /* Not an ASP search */
1282 p2p->p2ps_seek = 0;
1283 } else if (seek_count == 1 && seek && (!seek[0] || !seek[0][0])) {
1284 /*
1285 * An empty seek string means no hash values, but still an ASP
1286 * search.
1287 */
1288 p2p_dbg(p2p, "ASP search");
1289 p2p->p2ps_seek_count = 0;
1290 p2p->p2ps_seek = 1;
1291 } else if (seek && seek_count <= P2P_MAX_QUERY_HASH) {
1292 u8 buf[P2PS_HASH_LEN];
1293 int i, count = 0;
1294
1295 for (i = 0; i < seek_count; i++) {
1296 if (!p2ps_gen_hash(p2p, seek[i], buf))
1297 continue;
1298
1299 p2p_dbg(p2p, "Seek service %s hash " MACSTR_SEC,
1300 seek[i], MAC2STR_SEC(buf));
1301 os_memcpy(&p2p->p2ps_seek_hash[count * P2PS_HASH_LEN],
1302 buf, P2PS_HASH_LEN);
1303 count++;
1304 }
1305
1306 p2p->p2ps_seek_count = count;
1307 p2p->p2ps_seek = 1;
1308 } else {
1309 p2p->p2ps_seek_count = 0;
1310 p2p->p2ps_seek = 1;
1311 }
1312
1313 /* Special case to perform wildcard search */
1314 if (p2p->p2ps_seek_count == 0 && p2p->p2ps_seek) {
1315 p2p->p2ps_seek_count = 1;
1316 os_memcpy(&p2p->p2ps_seek_hash, p2p->wild_card_hash,
1317 P2PS_HASH_LEN);
1318 }
1319
1320 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1321 p2p_clear_timeout(p2p);
1322 if (p2p->pending_listen_freq) {
1323 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_find");
1324 p2p->pending_listen_freq = 0;
1325 }
1326 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1327 p2p->find_pending_full = 0;
1328 p2p->find_type = type;
1329 if (freq != 2412 && freq != 2437 && freq != 2462 && freq != 60480)
1330 p2p->find_specified_freq = freq;
1331 else
1332 p2p->find_specified_freq = 0;
1333 p2p_device_clear_reported(p2p);
1334 os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
1335 p2p_set_state(p2p, P2P_SEARCH);
1336 p2p->search_delay = search_delay;
1337 p2p->in_search_delay = 0;
1338 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1339 p2p->last_p2p_find_timeout = timeout;
1340 if (timeout)
1341 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1342 p2p, NULL);
1343 os_get_reltime(&start);
1344 switch (type) {
1345 #ifdef CONFIG_OPEN_HARMONY_SPECIFIC_P2P_FIND
1346 case P2P_FIND_SPECIFIC_FREQ:
1347 wpa_s = p2p->cfg->cb_ctx;
1348 freq = wpa_get_assoc_sta_freq(wpa_s->global);
1349 if (freq != 0) {
1350 p2p->start_after_scan = P2P_AFTER_SCAN_FULL_SCAN;
1351 p2p->find_pending_full = 1;
1352 p2p->find_type = P2P_FIND_START_WITH_FULL;
1353 }
1354 /* fall through */
1355 #endif
1356 case P2P_FIND_START_WITH_FULL:
1357 if (freq > 0) {
1358 /*
1359 * Start with the specified channel and then move to
1360 * scans for social channels and this specific channel.
1361 */
1362 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx,
1363 P2P_SCAN_SPECIFIC, freq,
1364 p2p->num_req_dev_types,
1365 p2p->req_dev_types, dev_id,
1366 DEV_PW_DEFAULT,
1367 p2p->include_6ghz);
1368 break;
1369 }
1370 /* fall through */
1371 case P2P_FIND_PROGRESSIVE:
1372 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1373 p2p->num_req_dev_types,
1374 p2p->req_dev_types, dev_id,
1375 DEV_PW_DEFAULT, p2p->include_6ghz);
1376 break;
1377 case P2P_FIND_ONLY_SOCIAL:
1378 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1379 p2p->num_req_dev_types,
1380 p2p->req_dev_types, dev_id,
1381 DEV_PW_DEFAULT, p2p->include_6ghz);
1382 break;
1383 default:
1384 return -1;
1385 }
1386
1387 if (!res)
1388 p2p->find_start = start;
1389
1390 if (res != 0 && p2p->p2p_scan_running) {
1391 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1392 /* wait for the previous p2p_scan to complete */
1393 if (type == P2P_FIND_PROGRESSIVE ||
1394 (type == P2P_FIND_START_WITH_FULL && freq == 0))
1395 p2p->find_pending_full = 1;
1396 res = 0; /* do not report failure */
1397 } else if (res != 0) {
1398 p2p_dbg(p2p, "Failed to start p2p_scan");
1399 p2p_set_state(p2p, P2P_IDLE);
1400 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1401 }
1402
1403 return res;
1404 }
1405
1406
1407 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
1408 {
1409 p2p_dbg(p2p, "Stopping find");
1410 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1411 p2p_clear_timeout(p2p);
1412 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
1413 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
1414
1415 p2p->p2ps_seek_count = 0;
1416
1417 p2p_set_state(p2p, P2P_IDLE);
1418 p2p_free_req_dev_types(p2p);
1419 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1420 if (p2p->go_neg_peer)
1421 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
1422 p2p->go_neg_peer = NULL;
1423 p2p->sd_peer = NULL;
1424 p2p->invite_peer = NULL;
1425 p2p_stop_listen_for_freq(p2p, freq);
1426 p2p->send_action_in_progress = 0;
1427 }
1428
1429
1430 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1431 {
1432 if (freq > 0 &&
1433 ((p2p->drv_in_listen == freq && p2p->in_listen) ||
1434 p2p->pending_listen_freq == (unsigned int) freq)) {
1435 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
1436 return;
1437 }
1438 if (p2p->in_listen) {
1439 p2p->in_listen = 0;
1440 p2p_clear_timeout(p2p);
1441 }
1442 if (p2p->drv_in_listen) {
1443 /*
1444 * The driver may not deliver callback to p2p_listen_end()
1445 * when the operation gets canceled, so clear the internal
1446 * variable that is tracking driver state.
1447 */
1448 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
1449 p2p->drv_in_listen = 0;
1450 }
1451 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1452 }
1453
1454
1455 void p2p_stop_listen(struct p2p_data *p2p)
1456 {
1457 if (p2p->state != P2P_LISTEN_ONLY) {
1458 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1459 return;
1460 }
1461
1462 p2p_stop_listen_for_freq(p2p, 0);
1463 p2p_set_state(p2p, P2P_IDLE);
1464 }
1465
1466
1467 void p2p_stop_find(struct p2p_data *p2p)
1468 {
1469 p2p->pending_listen_freq = 0;
1470 p2p_stop_find_for_freq(p2p, 0);
1471 }
1472
1473
1474 static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1475 unsigned int force_freq,
1476 unsigned int pref_freq, int go)
1477 {
1478 u8 op_class, op_channel;
1479 unsigned int freq = force_freq ? force_freq : pref_freq;
1480
1481 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1482 force_freq, pref_freq, go);
1483 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
1484 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
1485 return -1;
1486 }
1487
1488 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1489 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1490 op_channel))) {
1491 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1492 freq, op_class, op_channel);
1493 return -1;
1494 }
1495
1496 p2p->op_reg_class = op_class;
1497 p2p->op_channel = op_channel;
1498
1499 if (force_freq) {
1500 p2p->channels.reg_classes = 1;
1501 p2p->channels.reg_class[0].channels = 1;
1502 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1503 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
1504 } else {
1505 p2p_copy_channels(&p2p->channels, &p2p->cfg->channels,
1506 p2p->allow_6ghz);
1507 }
1508
1509 return 0;
1510 }
1511
1512
1513 static void p2p_prepare_channel_best(struct p2p_data *p2p)
1514 {
1515 u8 op_class, op_channel;
1516 const int op_classes_5ghz[] = { 124, 125, 115, 0 };
1517 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
1518 const int op_classes_vht[] = { 128, 0 };
1519 const int op_classes_edmg[] = { 181, 182, 183, 0 };
1520 const int op_classes_6ghz[] = { 131, 0 };
1521
1522 p2p_dbg(p2p, "Prepare channel best");
1523
1524 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1525 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
1526 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1527 == 0) {
1528 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
1529 p2p->op_reg_class = op_class;
1530 p2p->op_channel = op_channel;
1531 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1532 p2p_supported_freq(p2p, p2p->best_freq_5) &&
1533 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1534 == 0) {
1535 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
1536 p2p->op_reg_class = op_class;
1537 p2p->op_channel = op_channel;
1538 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1539 p2p_supported_freq(p2p, p2p->best_freq_24) &&
1540 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1541 &op_channel) == 0) {
1542 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
1543 p2p->op_reg_class = op_class;
1544 p2p->op_channel = op_channel;
1545 } else if (p2p->cfg->num_pref_chan > 0 &&
1546 p2p_channels_includes(&p2p->cfg->channels,
1547 p2p->cfg->pref_chan[0].op_class,
1548 p2p->cfg->pref_chan[0].chan)) {
1549 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1550 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1551 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
1552 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_edmg,
1553 &p2p->op_reg_class, &p2p->op_channel) ==
1554 0) {
1555 p2p_dbg(p2p, "Select possible EDMG channel (op_class %u channel %u) as operating channel preference",
1556 p2p->op_reg_class, p2p->op_channel);
1557 } else if (p2p->allow_6ghz &&
1558 (p2p_channel_select(&p2p->cfg->channels, op_classes_6ghz,
1559 &p2p->op_reg_class, &p2p->op_channel) ==
1560 0)) {
1561 p2p_dbg(p2p, "Select possible 6 GHz channel (op_class %u channel %u) as operating channel preference",
1562 p2p->op_reg_class, p2p->op_channel);
1563 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1564 &p2p->op_reg_class, &p2p->op_channel) ==
1565 0) {
1566 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1567 p2p->op_reg_class, p2p->op_channel);
1568 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1569 &p2p->op_reg_class, &p2p->op_channel) ==
1570 0) {
1571 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1572 p2p->op_reg_class, p2p->op_channel);
1573 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1574 &p2p->op_reg_class, &p2p->op_channel) ==
1575 0) {
1576 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1577 p2p->op_reg_class, p2p->op_channel);
1578 } else if (p2p_channels_includes(&p2p->cfg->channels,
1579 p2p->cfg->op_reg_class,
1580 p2p->cfg->op_channel)) {
1581 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
1582 p2p->op_reg_class = p2p->cfg->op_reg_class;
1583 p2p->op_channel = p2p->cfg->op_channel;
1584 } else if (p2p_channel_random_social(&p2p->cfg->channels,
1585 &p2p->op_reg_class,
1586 &p2p->op_channel,
1587 NULL, NULL) == 0) {
1588 p2p_dbg(p2p, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1589 p2p->op_reg_class, p2p->op_channel);
1590 } else {
1591 /* Select any random available channel from the first available
1592 * operating class */
1593 p2p_channel_select(&p2p->cfg->channels, NULL,
1594 &p2p->op_reg_class,
1595 &p2p->op_channel);
1596 p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
1597 p2p->op_channel, p2p->op_reg_class);
1598 }
1599
1600 p2p_copy_channels(&p2p->channels, &p2p->cfg->channels, p2p->allow_6ghz);
1601 }
1602
1603
1604 /**
1605 * p2p_prepare_channel - Select operating channel for GO Negotiation or P2PS PD
1606 * @p2p: P2P module context from p2p_init()
1607 * @dev: Selected peer device
1608 * @force_freq: Forced frequency in MHz or 0 if not forced
1609 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1610 * @go: Whether the local end will be forced to be GO
1611 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1612 *
1613 * This function is used to do initial operating channel selection for GO
1614 * Negotiation prior to having received peer information or for P2PS PD
1615 * signalling. The selected channel may be further optimized in
1616 * p2p_reselect_channel() once the peer information is available.
1617 */
1618 int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
1619 unsigned int force_freq, unsigned int pref_freq, int go)
1620 {
1621 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1622 force_freq, pref_freq, go);
1623 if (force_freq || pref_freq) {
1624 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1625 0)
1626 return -1;
1627 } else {
1628 p2p_prepare_channel_best(p2p);
1629 }
1630 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1631 if (go)
1632 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1633 else if (!force_freq)
1634 p2p_channels_union_inplace(&p2p->channels,
1635 &p2p->cfg->cli_channels);
1636 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1637
1638 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
1639 p2p->op_reg_class, p2p->op_channel,
1640 force_freq ? " (forced)" : "");
1641
1642 if (force_freq)
1643 dev->flags |= P2P_DEV_FORCE_FREQ;
1644 else
1645 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1646
1647 return 0;
1648 }
1649
1650
1651 static void p2p_set_dev_persistent(struct p2p_device *dev,
1652 int persistent_group)
1653 {
1654 switch (persistent_group) {
1655 case 0:
1656 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1657 P2P_DEV_PREFER_PERSISTENT_RECONN);
1658 break;
1659 case 1:
1660 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1661 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1662 break;
1663 case 2:
1664 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1665 P2P_DEV_PREFER_PERSISTENT_RECONN;
1666 break;
1667 }
1668 }
1669
1670
1671 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1672 enum p2p_wps_method wps_method,
1673 int go_intent, const u8 *own_interface_addr,
1674 unsigned int force_freq, int persistent_group,
1675 const u8 *force_ssid, size_t force_ssid_len,
1676 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
1677 {
1678 struct p2p_device *dev;
1679
1680 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR_SEC
1681 " GO Intent=%d Intended Interface Address=" MACSTR_SEC
1682 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1683 "oob_pw_id=%u allow_6ghz=%d",
1684 MAC2STR_SEC(peer_addr), go_intent, MAC2STR_SEC(own_interface_addr),
1685 wps_method, persistent_group, pd_before_go_neg, oob_pw_id,
1686 p2p->allow_6ghz);
1687
1688 dev = p2p_get_device(p2p, peer_addr);
1689 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
1690 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR_SEC,
1691 MAC2STR_SEC(peer_addr));
1692 return -1;
1693 }
1694
1695 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1696 go_intent == 15) < 0)
1697 return -1;
1698
1699 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
1700 if (!(dev->info.dev_capab &
1701 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
1702 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR_SEC
1703 " that is in a group and is not discoverable",
1704 MAC2STR_SEC(peer_addr));
1705 return -1;
1706 }
1707 if (dev->oper_freq <= 0) {
1708 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR_SEC
1709 " with incomplete information",
1710 MAC2STR_SEC(peer_addr));
1711 return -1;
1712 }
1713
1714 /*
1715 * First, try to connect directly. If the peer does not
1716 * acknowledge frames, assume it is sleeping and use device
1717 * discoverability via the GO at that point.
1718 */
1719 }
1720
1721 p2p->ssid_set = 0;
1722 if (force_ssid) {
1723 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1724 force_ssid, force_ssid_len);
1725 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1726 p2p->ssid_len = force_ssid_len;
1727 p2p->ssid_set = 1;
1728 }
1729
1730 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1731 dev->flags &= ~P2P_DEV_USER_REJECTED;
1732 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1733 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
1734 if (pd_before_go_neg)
1735 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
1736 else {
1737 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
1738 /*
1739 * Assign dialog token and tie breaker here to use the same
1740 * values in each retry within the same GO Negotiation exchange.
1741 */
1742 dev->dialog_token++;
1743 if (dev->dialog_token == 0)
1744 dev->dialog_token = 1;
1745 dev->tie_breaker = p2p->next_tie_breaker;
1746 p2p->next_tie_breaker = !p2p->next_tie_breaker;
1747 }
1748 dev->connect_reqs = 0;
1749 dev->go_neg_req_sent = 0;
1750 dev->go_state = UNKNOWN_GO;
1751 p2p_set_dev_persistent(dev, persistent_group);
1752 p2p->go_intent = go_intent;
1753 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1754
1755 if (p2p->state != P2P_IDLE)
1756 p2p_stop_find(p2p);
1757
1758 dev->wps_method = wps_method;
1759 dev->oob_pw_id = oob_pw_id;
1760 dev->status = P2P_SC_SUCCESS;
1761
1762 if (p2p->p2p_scan_running) {
1763 p2p_dbg(p2p, "p2p_scan running - delay connect send");
1764 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1765 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1766 return 0;
1767 }
1768
1769 return p2p_connect_send(p2p, dev);
1770 }
1771
1772
1773 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1774 enum p2p_wps_method wps_method,
1775 int go_intent, const u8 *own_interface_addr,
1776 unsigned int force_freq, int persistent_group,
1777 const u8 *force_ssid, size_t force_ssid_len,
1778 unsigned int pref_freq, u16 oob_pw_id)
1779 {
1780 struct p2p_device *dev;
1781
1782 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR_SEC
1783 " GO Intent=%d Intended Interface Address=" MACSTR_SEC
1784 " wps_method=%d persistent_group=%d oob_pw_id=%u allow_6ghz=%d",
1785 MAC2STR_SEC(peer_addr), go_intent, MAC2STR_SEC(own_interface_addr),
1786 wps_method, persistent_group, oob_pw_id, p2p->allow_6ghz);
1787
1788 dev = p2p_get_device(p2p, peer_addr);
1789 if (dev == NULL) {
1790 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR_SEC,
1791 MAC2STR_SEC(peer_addr));
1792 return -1;
1793 }
1794
1795 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1796 15) < 0)
1797 return -1;
1798
1799 p2p->ssid_set = 0;
1800 if (force_ssid) {
1801 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1802 force_ssid, force_ssid_len);
1803 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1804 p2p->ssid_len = force_ssid_len;
1805 p2p->ssid_set = 1;
1806 }
1807
1808 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1809 dev->flags &= ~P2P_DEV_USER_REJECTED;
1810 dev->go_neg_req_sent = 0;
1811 dev->go_state = UNKNOWN_GO;
1812 p2p_set_dev_persistent(dev, persistent_group);
1813 p2p->go_intent = go_intent;
1814 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1815
1816 dev->wps_method = wps_method;
1817 dev->oob_pw_id = oob_pw_id;
1818 dev->status = P2P_SC_SUCCESS;
1819
1820 return 0;
1821 }
1822
1823
1824 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1825 struct p2p_device *dev, struct p2p_message *msg)
1826 {
1827 os_get_reltime(&dev->last_seen);
1828
1829 p2p_copy_wps_info(p2p, dev, 0, msg);
1830
1831 if (msg->listen_channel) {
1832 int freq;
1833 freq = p2p_channel_to_freq(msg->listen_channel[3],
1834 msg->listen_channel[4]);
1835 if (freq < 0) {
1836 p2p_dbg(p2p, "Unknown peer Listen channel: "
1837 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1838 msg->listen_channel[0],
1839 msg->listen_channel[1],
1840 msg->listen_channel[2],
1841 msg->listen_channel[3],
1842 msg->listen_channel[4]);
1843 } else {
1844 p2p_dbg(p2p, "Update peer " MACSTR_SEC
1845 " Listen channel: %u -> %u MHz",
1846 MAC2STR_SEC(dev->info.p2p_device_addr),
1847 dev->listen_freq, freq);
1848 dev->listen_freq = freq;
1849 }
1850 }
1851
1852 if (msg->wfd_subelems) {
1853 wpabuf_free(dev->info.wfd_subelems);
1854 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1855 }
1856
1857 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1858 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
1859 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
1860 } else {
1861 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
1862 MACSTR_SEC " dev_capab=0x%x group_capab=0x%x name='%s' "
1863 "listen_freq=%d",
1864 MAC2STR_SEC(dev->info.p2p_device_addr),
1865 dev->info.dev_capab, dev->info.group_capab,
1866 dev->info.device_name, dev->listen_freq);
1867 }
1868
1869 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1870
1871 if (dev->flags & P2P_DEV_USER_REJECTED) {
1872 p2p_dbg(p2p, "Do not report rejected device");
1873 return;
1874 }
1875
1876 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1877 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1878 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
1879 }
1880
1881
1882 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1883 {
1884 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1885 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1886 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1887 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1888 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1889 }
1890
1891
1892 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1893 {
1894 if (p2p->ssid_set) {
1895 os_memcpy(params->ssid, p2p->ssid, p2p->ssid_len);
1896 params->ssid_len = p2p->ssid_len;
1897 } else {
1898 p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
1899 }
1900 p2p->ssid_set = 0;
1901
1902 p2p_random(params->passphrase, p2p->cfg->passphrase_len);
1903 return 0;
1904 }
1905
1906
1907 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1908 {
1909 struct p2p_go_neg_results res;
1910 int go = peer->go_state == LOCAL_GO;
1911 struct p2p_channels intersection;
1912
1913 p2p_dbg(p2p, "GO Negotiation with " MACSTR_SEC " completed (%s will be GO)",
1914 MAC2STR_SEC(peer->info.p2p_device_addr), go ? "local end" : "peer");
1915
1916 os_memset(&res, 0, sizeof(res));
1917 res.role_go = go;
1918 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
1919 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1920 res.wps_method = peer->wps_method;
1921 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1922 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1923 res.persistent_group = 2;
1924 else
1925 res.persistent_group = 1;
1926 }
1927
1928 if (go) {
1929 /* Setup AP mode for WPS provisioning */
1930 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
1931 p2p->op_channel);
1932 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1933 res.ssid_len = p2p->ssid_len;
1934 p2p_random(res.passphrase, p2p->cfg->passphrase_len);
1935 } else {
1936 res.freq = peer->oper_freq;
1937 if (p2p->ssid_len) {
1938 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1939 res.ssid_len = p2p->ssid_len;
1940 }
1941 }
1942
1943 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1944 p2p_channels_dump(p2p, "peer channels", &peer->channels);
1945 p2p_channels_intersect(&p2p->channels, &peer->channels,
1946 &intersection);
1947 if (go) {
1948 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1949 p2p_channels_dump(p2p, "intersection after no-GO removal",
1950 &intersection);
1951 }
1952
1953 p2p_channels_to_freqs(&intersection, res.freq_list,
1954 P2P_MAX_CHANNELS);
1955
1956 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1957
1958 p2p_clear_timeout(p2p);
1959 p2p->ssid_set = 0;
1960 peer->go_neg_req_sent = 0;
1961 peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
1962 peer->wps_method = WPS_NOT_READY;
1963 peer->oob_pw_id = 0;
1964 wpabuf_free(peer->go_neg_conf);
1965 peer->go_neg_conf = NULL;
1966
1967 p2p_set_state(p2p, P2P_PROVISIONING);
1968 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1969 }
1970
1971
1972 static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1973 const u8 *data, size_t len, int rx_freq)
1974 {
1975 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR_SEC, MAC2STR_SEC(sa));
1976 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1977
1978 if (len < 1)
1979 return;
1980
1981 switch (data[0]) {
1982 case P2P_GO_NEG_REQ:
1983 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1984 break;
1985 case P2P_GO_NEG_RESP:
1986 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1987 break;
1988 case P2P_GO_NEG_CONF:
1989 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1990 break;
1991 case P2P_INVITATION_REQ:
1992 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1993 rx_freq);
1994 break;
1995 case P2P_INVITATION_RESP:
1996 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1997 break;
1998 case P2P_PROV_DISC_REQ:
1999 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
2000 break;
2001 case P2P_PROV_DISC_RESP:
2002 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
2003 break;
2004 case P2P_DEV_DISC_REQ:
2005 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
2006 break;
2007 case P2P_DEV_DISC_RESP:
2008 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
2009 break;
2010 default:
2011 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
2012 data[0]);
2013 break;
2014 }
2015 }
2016
2017
2018 static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
2019 const u8 *sa, const u8 *bssid, const u8 *data,
2020 size_t len, int freq)
2021 {
2022 if (len < 1)
2023 return;
2024
2025 switch (data[0]) {
2026 case WLAN_PA_VENDOR_SPECIFIC:
2027 data++;
2028 len--;
2029 if (len < 4)
2030 return;
2031 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
2032 return;
2033
2034 data += 4;
2035 len -= 4;
2036
2037 p2p_rx_p2p_action(p2p, sa, data, len, freq);
2038 break;
2039 case WLAN_PA_GAS_INITIAL_REQ:
2040 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
2041 break;
2042 case WLAN_PA_GAS_INITIAL_RESP:
2043 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
2044 break;
2045 case WLAN_PA_GAS_COMEBACK_REQ:
2046 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
2047 break;
2048 case WLAN_PA_GAS_COMEBACK_RESP:
2049 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
2050 break;
2051 }
2052 }
2053
2054
2055 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
2056 const u8 *bssid, u8 category,
2057 const u8 *data, size_t len, int freq)
2058 {
2059 if (category == WLAN_ACTION_PUBLIC) {
2060 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
2061 return;
2062 }
2063
2064 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
2065 return;
2066
2067 if (len < 4)
2068 return;
2069
2070 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
2071 return;
2072 data += 4;
2073 len -= 4;
2074
2075 /* P2P action frame */
2076 p2p_dbg(p2p, "RX P2P Action from " MACSTR_SEC, MAC2STR_SEC(sa));
2077 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
2078
2079 if (len < 1)
2080 return;
2081 switch (data[0]) {
2082 case P2P_NOA:
2083 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
2084 /* TODO */
2085 break;
2086 case P2P_PRESENCE_REQ:
2087 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
2088 break;
2089 case P2P_PRESENCE_RESP:
2090 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
2091 break;
2092 case P2P_GO_DISC_REQ:
2093 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
2094 break;
2095 default:
2096 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
2097 break;
2098 }
2099 }
2100
2101
2102 static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
2103 {
2104 struct p2p_data *p2p = eloop_ctx;
2105 if (p2p->go_neg_peer == NULL)
2106 return;
2107 if (p2p->pending_listen_freq) {
2108 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_go_neg_start");
2109 p2p->pending_listen_freq = 0;
2110 }
2111 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
2112 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
2113 /*
2114 * Set new timeout to make sure a previously set one does not expire
2115 * too quickly while waiting for the GO Negotiation to complete.
2116 */
2117 p2p_set_timeout(p2p, 0, 500000);
2118 p2p_connect_send(p2p, p2p->go_neg_peer);
2119 }
2120
2121
2122 static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
2123 {
2124 struct p2p_data *p2p = eloop_ctx;
2125 if (p2p->invite_peer == NULL)
2126 return;
2127 if (p2p->pending_listen_freq) {
2128 p2p_dbg(p2p, "Clear pending_listen_freq for p2p_invite_start");
2129 p2p->pending_listen_freq = 0;
2130 }
2131 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
2132 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
2133 p2p->invite_dev_pw_id);
2134 }
2135
2136
2137 static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
2138 const u8 *ie, size_t ie_len)
2139 {
2140 struct p2p_message msg;
2141 struct p2p_device *dev;
2142
2143 os_memset(&msg, 0, sizeof(msg));
2144 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
2145 {
2146 p2p_parse_free(&msg);
2147 return; /* not a P2P probe */
2148 }
2149
2150 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
2151 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
2152 != 0) {
2153 /* The Probe Request is not part of P2P Device Discovery. It is
2154 * not known whether the source address of the frame is the P2P
2155 * Device Address or P2P Interface Address. Do not add a new
2156 * peer entry based on this frames.
2157 */
2158 p2p_parse_free(&msg);
2159 return;
2160 }
2161
2162 dev = p2p_get_device(p2p, addr);
2163 if (dev) {
2164 if (msg.listen_channel) {
2165 int freq;
2166
2167 if (dev->country[0] == 0)
2168 os_memcpy(dev->country, msg.listen_channel, 3);
2169
2170 freq = p2p_channel_to_freq(msg.listen_channel[3],
2171 msg.listen_channel[4]);
2172
2173 if (freq > 0 && dev->listen_freq != freq) {
2174 p2p_dbg(p2p,
2175 "Updated peer " MACSTR_SEC " Listen channel (Probe Request): %d -> %d MHz",
2176 MAC2STR_SEC(addr), dev->listen_freq, freq);
2177 dev->listen_freq = freq;
2178 }
2179 }
2180
2181 os_get_reltime(&dev->last_seen);
2182 p2p_parse_free(&msg);
2183 return; /* already known */
2184 }
2185
2186 dev = p2p_create_device(p2p, addr);
2187 if (dev == NULL) {
2188 p2p_parse_free(&msg);
2189 return;
2190 }
2191
2192 os_get_reltime(&dev->last_seen);
2193 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
2194
2195 if (msg.listen_channel) {
2196 os_memcpy(dev->country, msg.listen_channel, 3);
2197 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
2198 msg.listen_channel[4]);
2199 }
2200
2201 p2p_copy_wps_info(p2p, dev, 1, &msg);
2202
2203 if (msg.wfd_subelems) {
2204 wpabuf_free(dev->info.wfd_subelems);
2205 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
2206 }
2207
2208 p2p_parse_free(&msg);
2209
2210 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR_SEC
2211 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
2212 MAC2STR_SEC(dev->info.p2p_device_addr), dev->info.dev_capab,
2213 dev->info.group_capab, dev->info.device_name,
2214 dev->listen_freq);
2215 }
2216
2217
2218 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
2219 const u8 *addr,
2220 struct p2p_message *msg)
2221 {
2222 struct p2p_device *dev;
2223
2224 dev = p2p_get_device(p2p, addr);
2225 if (dev) {
2226 os_get_reltime(&dev->last_seen);
2227 return dev; /* already known */
2228 }
2229
2230 dev = p2p_create_device(p2p, addr);
2231 if (dev == NULL)
2232 return NULL;
2233
2234 p2p_add_dev_info(p2p, addr, dev, msg);
2235
2236 return dev;
2237 }
2238
2239
2240 static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
2241 {
2242 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
2243 return 1;
2244 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
2245 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
2246 WPA_GET_BE16(&req_dev_type[6]) == 0)
2247 return 1; /* Category match with wildcard OUI/sub-category */
2248 return 0;
2249 }
2250
2251
2252 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
2253 size_t num_req_dev_type)
2254 {
2255 size_t i;
2256 for (i = 0; i < num_req_dev_type; i++) {
2257 if (dev_type_match(dev_type, req_dev_type[i]))
2258 return 1;
2259 }
2260 return 0;
2261 }
2262
2263
2264 /**
2265 * p2p_match_dev_type - Match local device type with requested type
2266 * @p2p: P2P module context from p2p_init()
2267 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2268 * Returns: 1 on match, 0 on mismatch
2269 *
2270 * This function can be used to match the Requested Device Type attribute in
2271 * WPS IE with the local device types for deciding whether to reply to a Probe
2272 * Request frame.
2273 */
2274 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
2275 {
2276 struct wps_parse_attr attr;
2277 size_t i;
2278
2279 if (wps_parse_msg(wps, &attr))
2280 return 1; /* assume no Requested Device Type attributes */
2281
2282 if (attr.num_req_dev_type == 0)
2283 return 1; /* no Requested Device Type attributes -> match */
2284
2285 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
2286 attr.num_req_dev_type))
2287 return 1; /* Own Primary Device Type matches */
2288
2289 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++) {
2290 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
2291 attr.req_dev_type,
2292 attr.num_req_dev_type))
2293 return 1; /* Own Secondary Device Type matches */
2294 }
2295
2296 /* No matching device type found */
2297 return 0;
2298 }
2299
2300
2301 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p,
2302 const u8 *query_hash,
2303 u8 query_count)
2304 {
2305 struct wpabuf *buf;
2306 u8 *len;
2307 int pw_id = -1;
2308 size_t extra = 0;
2309
2310 #ifdef CONFIG_WIFI_DISPLAY
2311 if (p2p->wfd_ie_probe_resp)
2312 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
2313 #endif /* CONFIG_WIFI_DISPLAY */
2314
2315 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2316 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2317
2318 if (query_count)
2319 extra += MAX_SVC_ADV_IE_LEN;
2320
2321 buf = wpabuf_alloc(1000 + extra);
2322 if (buf == NULL)
2323 return NULL;
2324
2325 if (p2p->go_neg_peer) {
2326 /* Advertise immediate availability of WPS credential */
2327 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
2328 }
2329
2330 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
2331 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
2332 wpabuf_free(buf);
2333 return NULL;
2334 }
2335
2336 #ifdef CONFIG_WIFI_DISPLAY
2337 if (p2p->wfd_ie_probe_resp)
2338 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
2339 #endif /* CONFIG_WIFI_DISPLAY */
2340
2341 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
2342 wpabuf_put_buf(buf,
2343 p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
2344 //resp增加字段
2345 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
2346 if (hm_p2p_add_pvt_vendor_ie(buf))
2347 wpa_printf(MSG_ERROR, "add pvt vendor IE fail");
2348 #endif
2349
2350 /* P2P IE */
2351 len = p2p_buf_add_ie_hdr(buf);
2352 p2p_buf_add_capability(buf, p2p->dev_capab &
2353 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
2354 if (p2p->ext_listen_interval)
2355 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
2356 p2p->ext_listen_interval);
2357 p2p_buf_add_device_info(buf, p2p, NULL);
2358 p2p_buf_update_ie_hdr(buf, len);
2359
2360 if (query_count) {
2361 p2p_buf_add_service_instance(buf, p2p, query_count, query_hash,
2362 p2p->p2ps_adv_list);
2363 }
2364
2365 return buf;
2366 }
2367
2368 static int p2p_build_probe_resp_buf(struct p2p_data *p2p, struct wpabuf *buf,
2369 struct wpabuf *ies,
2370 const u8 *addr, int rx_freq)
2371 {
2372 struct ieee80211_mgmt *resp;
2373 u8 channel, op_class;
2374
2375 resp = wpabuf_put(buf, offsetof(struct ieee80211_mgmt,
2376 u.probe_resp.variable));
2377
2378 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2379 (WLAN_FC_STYPE_PROBE_RESP << 4));
2380 os_memcpy(resp->da, addr, ETH_ALEN);
2381 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2382 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2383 resp->u.probe_resp.beacon_int = host_to_le16(100);
2384 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2385 resp->u.probe_resp.capab_info =
2386 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2387 WLAN_CAPABILITY_PRIVACY |
2388 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2389
2390 wpabuf_put_u8(buf, WLAN_EID_SSID);
2391 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2392 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2393
2394 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2395 wpabuf_put_u8(buf, 8);
2396 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2397 wpabuf_put_u8(buf, 90 / 5);
2398 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2399 wpabuf_put_u8(buf, 180 / 5);
2400 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2401 wpabuf_put_u8(buf, 360 / 5);
2402 wpabuf_put_u8(buf, 480 / 5);
2403 wpabuf_put_u8(buf, 540 / 5);
2404
2405 if (!rx_freq) {
2406 channel = p2p->cfg->channel;
2407 } else if (p2p_freq_to_channel(rx_freq, &op_class, &channel)) {
2408 p2p_err(p2p, "Failed to convert freq to channel");
2409 return -1;
2410 }
2411
2412 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2413 wpabuf_put_u8(buf, 1);
2414 wpabuf_put_u8(buf, channel);
2415
2416 wpabuf_put_buf(buf, ies);
2417
2418 return 0;
2419 }
2420
2421 static int p2p_service_find_asp(struct p2p_data *p2p, const u8 *hash)
2422 {
2423 struct p2ps_advertisement *adv_data;
2424 int any_wfa;
2425
2426 p2p_dbg(p2p, "ASP find - ASP list: %p", p2p->p2ps_adv_list);
2427
2428 /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
2429 any_wfa = os_memcmp(hash, p2p->wild_card_hash, P2PS_HASH_LEN) == 0;
2430
2431 adv_data = p2p->p2ps_adv_list;
2432 while (adv_data) {
2433 if (os_memcmp(hash, adv_data->hash, P2PS_HASH_LEN) == 0)
2434 return 1; /* exact hash match */
2435 if (any_wfa &&
2436 os_strncmp(adv_data->svc_name, P2PS_WILD_HASH_STR,
2437 os_strlen(P2PS_WILD_HASH_STR)) == 0)
2438 return 1; /* WFA service match */
2439 adv_data = adv_data->next;
2440 }
2441
2442 return 0;
2443 }
2444
2445
2446 static enum p2p_probe_req_status
2447 p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2448 const u8 *bssid, const u8 *ie, size_t ie_len,
2449 unsigned int rx_freq)
2450 {
2451 struct ieee802_11_elems elems;
2452 struct wpabuf *buf;
2453 struct p2p_message msg;
2454 struct wpabuf *ies;
2455
2456 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
2457 ParseFailed) {
2458 /* Ignore invalid Probe Request frames */
2459 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
2460 return P2P_PREQ_MALFORMED;
2461 }
2462
2463 if (elems.p2p == NULL) {
2464 /* not a P2P probe - ignore it */
2465 p2p_dbg(p2p, "Not a P2P probe - ignore it");
2466 return P2P_PREQ_NOT_P2P;
2467 }
2468
2469 if (dst && !is_broadcast_ether_addr(dst) &&
2470 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2471 /* Not sent to the broadcast address or our P2P Device Address
2472 */
2473 p2p_dbg(p2p, "Probe Req DA " MACSTR_SEC " not ours - ignore it",
2474 MAC2STR_SEC(dst));
2475 return P2P_PREQ_NOT_PROCESSED;
2476 }
2477
2478 if (bssid && !is_broadcast_ether_addr(bssid)) {
2479 /* Not sent to the Wildcard BSSID */
2480 p2p_dbg(p2p, "Probe Req BSSID " MACSTR_SEC " not wildcard - ignore it",
2481 MAC2STR_SEC(bssid));
2482 return P2P_PREQ_NOT_PROCESSED;
2483 }
2484
2485 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
2486 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2487 0) {
2488 /* not using P2P Wildcard SSID - ignore */
2489 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
2490 return P2P_PREQ_NOT_PROCESSED;
2491 }
2492
2493 if (supp_rates_11b_only(&elems)) {
2494 /* Indicates support for 11b rates only */
2495 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
2496 return P2P_PREQ_NOT_P2P;
2497 }
2498
2499 os_memset(&msg, 0, sizeof(msg));
2500 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2501 /* Could not parse P2P attributes */
2502 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
2503 return P2P_PREQ_NOT_P2P;
2504 }
2505
2506 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
2507 hm_p2p_save_peer_info(&elems, addr);
2508 #endif
2509
2510 if (msg.service_hash && msg.service_hash_count) {
2511 const u8 *hash = msg.service_hash;
2512 u8 i;
2513 int p2ps_svc_found = 0;
2514
2515 p2p_dbg(p2p, "in_listen=%d drv_in_listen=%d when received P2PS Probe Request at %u MHz; own Listen channel %u, pending listen freq %u MHz",
2516 p2p->in_listen, p2p->drv_in_listen, rx_freq,
2517 p2p->cfg->channel, p2p->pending_listen_freq);
2518
2519 if (!p2p->in_listen && !p2p->drv_in_listen &&
2520 p2p->pending_listen_freq && rx_freq &&
2521 rx_freq != p2p->pending_listen_freq) {
2522 p2p_dbg(p2p, "Do not reply to Probe Request frame that was received on %u MHz while waiting to start Listen state on %u MHz",
2523 rx_freq, p2p->pending_listen_freq);
2524 p2p_parse_free(&msg);
2525 return P2P_PREQ_NOT_LISTEN;
2526 }
2527
2528 for (i = 0; i < msg.service_hash_count; i++) {
2529 if (p2p_service_find_asp(p2p, hash)) {
2530 p2p_dbg(p2p, "Service Hash match found: "
2531 MACSTR_SEC, MAC2STR_SEC(hash));
2532 p2ps_svc_found = 1;
2533 break;
2534 }
2535 hash += P2PS_HASH_LEN;
2536 }
2537
2538 /* Probed hash unknown */
2539 if (!p2ps_svc_found) {
2540 p2p_dbg(p2p, "No Service Hash match found");
2541 p2p_parse_free(&msg);
2542 return P2P_PREQ_NOT_PROCESSED;
2543 }
2544 } else {
2545 /* This is not a P2PS Probe Request */
2546 p2p_dbg(p2p, "No P2PS Hash in Probe Request");
2547
2548 if (!p2p->in_listen || !p2p->drv_in_listen) {
2549 /* not in Listen state - ignore Probe Request */
2550 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2551 p2p->in_listen, p2p->drv_in_listen);
2552 p2p_parse_free(&msg);
2553 return P2P_PREQ_NOT_LISTEN;
2554 }
2555 }
2556
2557 if (msg.device_id &&
2558 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
2559 /* Device ID did not match */
2560 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR_SEC " did not match - ignore it",
2561 MAC2STR_SEC(msg.device_id));
2562 p2p_parse_free(&msg);
2563 return P2P_PREQ_NOT_PROCESSED;
2564 }
2565
2566 /* Check Requested Device Type match */
2567 if (msg.wps_attributes &&
2568 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
2569 /* No match with Requested Device Type */
2570 p2p_dbg(p2p, "Probe Req requested Device Type did not match - ignore it");
2571 p2p_parse_free(&msg);
2572 return P2P_PREQ_NOT_PROCESSED;
2573 }
2574
2575 if (!p2p->cfg->send_probe_resp) {
2576 /* Response generated elsewhere */
2577 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
2578 p2p_parse_free(&msg);
2579 return P2P_PREQ_NOT_PROCESSED;
2580 }
2581
2582 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
2583
2584 /*
2585 * We do not really have a specific BSS that this frame is advertising,
2586 * so build a frame that has some information in valid format. This is
2587 * really only used for discovery purposes, not to learn exact BSS
2588 * parameters.
2589 */
2590 ies = p2p_build_probe_resp_ies(p2p, msg.service_hash,
2591 msg.service_hash_count);
2592 p2p_parse_free(&msg);
2593 if (ies == NULL)
2594 return P2P_PREQ_NOT_PROCESSED;
2595
2596 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2597 if (buf == NULL) {
2598 wpabuf_free(ies);
2599 return P2P_PREQ_NOT_PROCESSED;
2600 }
2601
2602 if (p2p_build_probe_resp_buf(p2p, buf, ies, addr, rx_freq)) {
2603 wpabuf_free(ies);
2604 wpabuf_free(buf);
2605 return P2P_PREQ_NOT_PROCESSED;
2606 }
2607
2608 wpabuf_free(ies);
2609
2610 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf, rx_freq);
2611
2612 wpabuf_free(buf);
2613
2614 return P2P_PREQ_PROCESSED;
2615 }
2616
2617
2618 enum p2p_probe_req_status
2619 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2620 const u8 *bssid, const u8 *ie, size_t ie_len,
2621 unsigned int rx_freq, int p2p_lo_started)
2622 {
2623 enum p2p_probe_req_status res;
2624
2625 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2626
2627 if (p2p_lo_started) {
2628 p2p_dbg(p2p,
2629 "Probe Response is offloaded, do not reply Probe Request");
2630 return P2P_PREQ_PROCESSED;
2631 }
2632
2633 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len, rx_freq);
2634 if (res != P2P_PREQ_PROCESSED && res != P2P_PREQ_NOT_PROCESSED)
2635 return res;
2636
2637 /*
2638 * Activate a pending GO Negotiation/Invite flow if a received Probe
2639 * Request frame is from an expected peer. Some devices may share the
2640 * same address for P2P and non-P2P STA running simultaneously. The
2641 * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
2642 * return values verified above ensure we are handling a Probe Request
2643 * frame from a P2P peer.
2644 */
2645 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2646 p2p->go_neg_peer &&
2647 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
2648 == 0 &&
2649 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
2650 /* Received a Probe Request from GO Negotiation peer */
2651 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
2652 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
2653 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
2654 return res;
2655 }
2656
2657 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2658 p2p->invite_peer &&
2659 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
2660 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2661 == 0) {
2662 /* Received a Probe Request from Invite peer */
2663 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
2664 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
2665 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
2666 return res;
2667 }
2668
2669 return res;
2670 }
2671
2672
2673 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
2674 u8 *buf, size_t len, struct wpabuf *p2p_ie)
2675 {
2676 struct wpabuf *tmp;
2677 u8 *lpos;
2678 size_t tmplen;
2679 int res;
2680 u8 group_capab;
2681 struct p2p_message msg;
2682
2683 if (p2p_ie == NULL)
2684 return 0; /* WLAN AP is not a P2P manager */
2685
2686 os_memset(&msg, 0, sizeof(msg));
2687 if (p2p_parse_p2p_ie(p2p_ie, &msg) < 0)
2688 return 0;
2689
2690 p2p_dbg(p2p, "BSS P2P manageability %s",
2691 msg.manageability ? "enabled" : "disabled");
2692
2693 if (!msg.manageability)
2694 return 0;
2695
2696 /*
2697 * (Re)Association Request - P2P IE
2698 * P2P Capability attribute (shall be present)
2699 * P2P Interface attribute (present if concurrent device and
2700 * P2P Management is enabled)
2701 */
2702 tmp = wpabuf_alloc(200);
2703 if (tmp == NULL)
2704 return -1;
2705
2706 lpos = p2p_buf_add_ie_hdr(tmp);
2707 group_capab = 0;
2708 if (p2p->num_groups > 0) {
2709 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2710 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2711 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2712 p2p->cross_connect)
2713 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2714 }
2715 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
2716 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2717 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
2718 p2p_buf_add_p2p_interface(tmp, p2p);
2719 p2p_buf_update_ie_hdr(tmp, lpos);
2720
2721 tmplen = wpabuf_len(tmp);
2722 if (tmplen > len)
2723 res = -1;
2724 else {
2725 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2726 res = tmplen;
2727 }
2728 wpabuf_free(tmp);
2729
2730 return res;
2731 }
2732
2733
2734 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
2735 size_t len, int p2p_group, struct wpabuf *p2p_ie)
2736 {
2737 struct wpabuf *tmp;
2738 u8 *lpos;
2739 struct p2p_device *peer;
2740 size_t tmplen;
2741 int res;
2742 size_t extra = 0;
2743
2744 if (!p2p_group)
2745 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
2746
2747 #ifdef CONFIG_WIFI_DISPLAY
2748 if (p2p->wfd_ie_assoc_req)
2749 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2750 #endif /* CONFIG_WIFI_DISPLAY */
2751
2752 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2753 extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2754
2755 /*
2756 * (Re)Association Request - P2P IE
2757 * P2P Capability attribute (shall be present)
2758 * Extended Listen Timing (may be present)
2759 * P2P Device Info attribute (shall be present)
2760 */
2761 tmp = wpabuf_alloc(200 + extra);
2762 if (tmp == NULL)
2763 return -1;
2764
2765 #ifdef CONFIG_WIFI_DISPLAY
2766 if (p2p->wfd_ie_assoc_req)
2767 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2768 #endif /* CONFIG_WIFI_DISPLAY */
2769
2770 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
2771 wpabuf_put_buf(tmp,
2772 p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
2773
2774 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2775
2776 lpos = p2p_buf_add_ie_hdr(tmp);
2777 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
2778 if (p2p->ext_listen_interval)
2779 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2780 p2p->ext_listen_interval);
2781 p2p_buf_add_device_info(tmp, p2p, peer);
2782 p2p_buf_update_ie_hdr(tmp, lpos);
2783
2784 tmplen = wpabuf_len(tmp);
2785 if (tmplen > len)
2786 res = -1;
2787 else {
2788 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2789 res = tmplen;
2790 }
2791 wpabuf_free(tmp);
2792
2793 return res;
2794 }
2795
2796
2797 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2798 {
2799 struct wpabuf *p2p_ie;
2800 int ret;
2801
2802 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2803 if (p2p_ie == NULL)
2804 return 0;
2805
2806 ret = p2p_attr_text(p2p_ie, buf, end);
2807 wpabuf_free(p2p_ie);
2808 return ret;
2809 }
2810
2811
2812 struct p2ps_advertisement *
2813 p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id)
2814 {
2815 struct p2ps_advertisement *adv_data;
2816
2817 if (!p2p)
2818 return NULL;
2819
2820 adv_data = p2p->p2ps_adv_list;
2821 while (adv_data) {
2822 if (adv_data->id == adv_id)
2823 return adv_data;
2824 adv_data = adv_data->next;
2825 }
2826
2827 return NULL;
2828 }
2829
2830
2831 int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id)
2832 {
2833 struct p2ps_advertisement *adv_data;
2834 struct p2ps_advertisement **prior;
2835
2836 if (!p2p)
2837 return -1;
2838
2839 adv_data = p2p->p2ps_adv_list;
2840 prior = &p2p->p2ps_adv_list;
2841 while (adv_data) {
2842 if (adv_data->id == adv_id) {
2843 p2p_dbg(p2p, "Delete ASP adv_id=0x%x", adv_id);
2844 *prior = adv_data->next;
2845 os_free(adv_data);
2846 return 0;
2847 }
2848 prior = &adv_data->next;
2849 adv_data = adv_data->next;
2850 }
2851
2852 return -1;
2853 }
2854
2855
2856 int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id,
2857 const char *adv_str, u8 svc_state, u16 config_methods,
2858 const char *svc_info, const u8 *cpt_priority)
2859 {
2860 struct p2ps_advertisement *adv_data, *tmp, **prev;
2861 u8 buf[P2PS_HASH_LEN];
2862 size_t adv_data_len, adv_len, info_len = 0;
2863 int i;
2864
2865 if (!p2p || !adv_str || !adv_str[0] || !cpt_priority)
2866 return -1;
2867
2868 if (!(config_methods & p2p->cfg->config_methods)) {
2869 p2p_dbg(p2p, "Config methods not supported svc: 0x%x dev: 0x%x",
2870 config_methods, p2p->cfg->config_methods);
2871 return -1;
2872 }
2873
2874 if (!p2ps_gen_hash(p2p, adv_str, buf))
2875 return -1;
2876
2877 if (svc_info)
2878 info_len = os_strlen(svc_info);
2879 adv_len = os_strlen(adv_str);
2880 adv_data_len = sizeof(struct p2ps_advertisement) + adv_len + 1 +
2881 info_len + 1;
2882
2883 adv_data = os_zalloc(adv_data_len);
2884 if (!adv_data)
2885 return -1;
2886
2887 os_memcpy(adv_data->hash, buf, P2PS_HASH_LEN);
2888 adv_data->id = adv_id;
2889 adv_data->state = svc_state;
2890 adv_data->config_methods = config_methods & p2p->cfg->config_methods;
2891 adv_data->auto_accept = (u8) auto_accept;
2892 os_memcpy(adv_data->svc_name, adv_str, adv_len);
2893
2894 for (i = 0; cpt_priority[i] && i < P2PS_FEATURE_CAPAB_CPT_MAX; i++) {
2895 adv_data->cpt_priority[i] = cpt_priority[i];
2896 adv_data->cpt_mask |= cpt_priority[i];
2897 }
2898
2899 if (svc_info && info_len) {
2900 adv_data->svc_info = &adv_data->svc_name[adv_len + 1];
2901 os_memcpy(adv_data->svc_info, svc_info, info_len);
2902 }
2903
2904 /*
2905 * Group Advertisements by service string. They do not need to be
2906 * sorted, but groups allow easier Probe Response instance grouping
2907 */
2908 tmp = p2p->p2ps_adv_list;
2909 prev = &p2p->p2ps_adv_list;
2910 while (tmp) {
2911 if (tmp->id == adv_data->id) {
2912 if (os_strcmp(tmp->svc_name, adv_data->svc_name) != 0) {
2913 os_free(adv_data);
2914 return -1;
2915 }
2916 adv_data->next = tmp->next;
2917 *prev = adv_data;
2918 os_free(tmp);
2919 goto inserted;
2920 } else {
2921 if (os_strcmp(tmp->svc_name, adv_data->svc_name) == 0) {
2922 adv_data->next = tmp->next;
2923 tmp->next = adv_data;
2924 goto inserted;
2925 }
2926 }
2927 prev = &tmp->next;
2928 tmp = tmp->next;
2929 }
2930
2931 /* No svc_name match found */
2932 adv_data->next = p2p->p2ps_adv_list;
2933 p2p->p2ps_adv_list = adv_data;
2934
2935 inserted:
2936 p2p_dbg(p2p,
2937 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
2938 adv_id, adv_data->config_methods, svc_state, adv_str,
2939 adv_data->cpt_mask);
2940
2941 return 0;
2942 }
2943
2944
2945 void p2p_service_flush_asp(struct p2p_data *p2p)
2946 {
2947 struct p2ps_advertisement *adv, *prev;
2948
2949 if (!p2p)
2950 return;
2951
2952 adv = p2p->p2ps_adv_list;
2953 while (adv) {
2954 prev = adv;
2955 adv = adv->next;
2956 os_free(prev);
2957 }
2958
2959 p2p->p2ps_adv_list = NULL;
2960 p2ps_prov_free(p2p);
2961 p2p_dbg(p2p, "All ASP advertisements flushed");
2962 }
2963
2964
2965 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
2966 {
2967 struct p2p_message msg;
2968
2969 os_memset(&msg, 0, sizeof(msg));
2970 if (p2p_parse_p2p_ie(p2p_ie, &msg))
2971 return -1;
2972
2973 if (msg.p2p_device_addr) {
2974 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
2975 return 0;
2976 } else if (msg.device_id) {
2977 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
2978 return 0;
2979 }
2980 return -1;
2981 }
2982
2983
2984 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2985 {
2986 struct wpabuf *p2p_ie;
2987 int ret;
2988
2989 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2990 P2P_IE_VENDOR_TYPE);
2991 if (p2p_ie == NULL)
2992 return -1;
2993 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
2994 wpabuf_free(p2p_ie);
2995 return ret;
2996 }
2997
2998
2999 static void p2p_clear_go_neg(struct p2p_data *p2p)
3000 {
3001 p2p->go_neg_peer = NULL;
3002 p2p_clear_timeout(p2p);
3003 p2p_set_state(p2p, P2P_IDLE);
3004 }
3005
3006
3007 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
3008 {
3009 if (p2p->go_neg_peer == NULL) {
3010 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
3011 return; /* No pending Group Formation */
3012 }
3013
3014 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
3015 0) {
3016 p2p_dbg(p2p, "Ignore WPS registration success notification for "
3017 MACSTR_SEC " (GO Negotiation peer " MACSTR_SEC ")",
3018 MAC2STR_SEC(mac_addr),
3019 MAC2STR_SEC(p2p->go_neg_peer->intended_addr));
3020 return; /* Ignore unexpected peer address */
3021 }
3022
3023 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR_SEC,
3024 MAC2STR_SEC(mac_addr));
3025
3026 p2p_clear_go_neg(p2p);
3027 }
3028
3029
3030 void p2p_group_formation_failed(struct p2p_data *p2p)
3031 {
3032 if (p2p->go_neg_peer == NULL) {
3033 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
3034 return; /* No pending Group Formation */
3035 }
3036
3037 p2p_dbg(p2p, "Group Formation failed with " MACSTR_SEC,
3038 MAC2STR_SEC(p2p->go_neg_peer->intended_addr));
3039
3040 p2p_clear_go_neg(p2p);
3041 }
3042
3043
3044 bool is_p2p_6ghz_disabled(struct p2p_data *p2p)
3045 {
3046 if (p2p)
3047 return p2p->cfg->p2p_6ghz_disable;
3048 return false;
3049 }
3050
3051
3052 struct p2p_data * p2p_init(const struct p2p_config *cfg)
3053 {
3054 struct p2p_data *p2p;
3055
3056 if (cfg->max_peers < 1 ||
3057 cfg->passphrase_len < 8 || cfg->passphrase_len > 63)
3058 return NULL;
3059
3060 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
3061 if (p2p == NULL)
3062 return NULL;
3063 p2p->cfg = (struct p2p_config *) (p2p + 1);
3064 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
3065 if (cfg->dev_name)
3066 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
3067 if (cfg->manufacturer)
3068 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
3069 if (cfg->model_name)
3070 p2p->cfg->model_name = os_strdup(cfg->model_name);
3071 if (cfg->model_number)
3072 p2p->cfg->model_number = os_strdup(cfg->model_number);
3073 if (cfg->serial_number)
3074 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
3075 if (cfg->pref_chan) {
3076 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
3077 sizeof(struct p2p_channel));
3078 if (p2p->cfg->pref_chan) {
3079 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
3080 cfg->num_pref_chan *
3081 sizeof(struct p2p_channel));
3082 } else
3083 p2p->cfg->num_pref_chan = 0;
3084 }
3085
3086 p2ps_gen_hash(p2p, P2PS_WILD_HASH_STR, p2p->wild_card_hash);
3087
3088 p2p->min_disc_int = 1;
3089 p2p->max_disc_int = 3;
3090 p2p->max_disc_tu = -1;
3091
3092 if (os_get_random(&p2p->next_tie_breaker, 1) < 0)
3093 p2p->next_tie_breaker = 0;
3094 p2p->next_tie_breaker &= 0x01;
3095 if (cfg->sd_request)
3096 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
3097 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
3098 if (cfg->concurrent_operations)
3099 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
3100 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3101
3102 dl_list_init(&p2p->devices);
3103
3104 p2p->go_timeout = 100;
3105 p2p->client_timeout = 20;
3106 p2p->num_p2p_sd_queries = 0;
3107
3108 p2p_dbg(p2p, "initialized");
3109 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
3110 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
3111
3112 #ifdef CONFIG_OPEN_HARMONY_PATCH
3113 #ifdef CONFIG_P2P_GON_OPT
3114 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
3115 p2p->calculated_go_intent = P2P_GO_NEG_OPT_INTENT;
3116 #endif
3117 #endif
3118 #endif
3119 #ifdef HARMONY_CONNECTIVITY_PATCH
3120 #ifndef OPEN_HARMONY_MIRACAST_SINK_OPT
3121 p2p_set_persistent_group_need_remove_flag(p2p, 0);
3122 #endif
3123 #endif
3124
3125 #ifdef OPEN_HARMONY_P2P_ONEHOP_FIND
3126 p2p->pvt_p2p_service = P2P_NORMAL_FIND;
3127 #endif
3128 return p2p;
3129 }
3130
3131
3132 void p2p_deinit(struct p2p_data *p2p)
3133 {
3134 #ifdef CONFIG_WIFI_DISPLAY
3135 wpabuf_free(p2p->wfd_ie_beacon);
3136 wpabuf_free(p2p->wfd_ie_probe_req);
3137 wpabuf_free(p2p->wfd_ie_probe_resp);
3138 wpabuf_free(p2p->wfd_ie_assoc_req);
3139 wpabuf_free(p2p->wfd_ie_invitation);
3140 wpabuf_free(p2p->wfd_ie_prov_disc_req);
3141 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
3142 wpabuf_free(p2p->wfd_ie_go_neg);
3143 wpabuf_free(p2p->wfd_dev_info);
3144 wpabuf_free(p2p->wfd_assoc_bssid);
3145 wpabuf_free(p2p->wfd_coupled_sink_info);
3146 wpabuf_free(p2p->wfd_r2_dev_info);
3147 #endif /* CONFIG_WIFI_DISPLAY */
3148
3149 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
3150 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
3151 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
3152 p2p_flush(p2p);
3153 p2p_free_req_dev_types(p2p);
3154 os_free(p2p->cfg->dev_name);
3155 os_free(p2p->cfg->manufacturer);
3156 os_free(p2p->cfg->model_name);
3157 os_free(p2p->cfg->model_number);
3158 os_free(p2p->cfg->serial_number);
3159 os_free(p2p->cfg->pref_chan);
3160 os_free(p2p->groups);
3161 p2ps_prov_free(p2p);
3162 wpabuf_free(p2p->sd_resp);
3163 p2p_remove_wps_vendor_extensions(p2p);
3164 os_free(p2p->no_go_freq.range);
3165 p2p_service_flush_asp(p2p);
3166
3167 os_free(p2p);
3168 }
3169
3170
3171 void p2p_flush(struct p2p_data *p2p)
3172 {
3173 struct p2p_device *dev, *prev;
3174
3175 p2p_ext_listen(p2p, 0, 0);
3176 p2p_stop_find(p2p);
3177 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
3178 list) {
3179 dl_list_del(&dev->list);
3180 p2p_device_free(p2p, dev);
3181 }
3182 p2p_free_sd_queries(p2p);
3183 p2p->ssid_set = 0;
3184 p2ps_prov_free(p2p);
3185 p2p_reset_pending_pd(p2p);
3186 p2p->override_pref_op_class = 0;
3187 p2p->override_pref_channel = 0;
3188 }
3189
3190
3191 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
3192 {
3193 struct p2p_device *dev;
3194
3195 dev = p2p_get_device(p2p, addr);
3196 if (dev == NULL)
3197 return -1;
3198
3199 p2p_dbg(p2p, "Unauthorizing " MACSTR_SEC, MAC2STR_SEC(addr));
3200
3201 if (p2p->go_neg_peer == dev) {
3202 eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
3203 p2p->go_neg_peer = NULL;
3204 }
3205
3206 dev->wps_method = WPS_NOT_READY;
3207 dev->oob_pw_id = 0;
3208 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
3209 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
3210
3211 return 0;
3212 }
3213
3214
3215 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
3216 {
3217 os_free(p2p->cfg->dev_name);
3218 if (dev_name) {
3219 p2p->cfg->dev_name = os_strdup(dev_name);
3220 if (p2p->cfg->dev_name == NULL)
3221 return -1;
3222 } else
3223 p2p->cfg->dev_name = NULL;
3224 return 0;
3225 }
3226
3227
3228 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
3229 {
3230 os_free(p2p->cfg->manufacturer);
3231 p2p->cfg->manufacturer = NULL;
3232 if (manufacturer) {
3233 p2p->cfg->manufacturer = os_strdup(manufacturer);
3234 if (p2p->cfg->manufacturer == NULL)
3235 return -1;
3236 }
3237
3238 return 0;
3239 }
3240
3241
3242 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
3243 {
3244 os_free(p2p->cfg->model_name);
3245 p2p->cfg->model_name = NULL;
3246 if (model_name) {
3247 p2p->cfg->model_name = os_strdup(model_name);
3248 if (p2p->cfg->model_name == NULL)
3249 return -1;
3250 }
3251
3252 return 0;
3253 }
3254
3255
3256 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
3257 {
3258 os_free(p2p->cfg->model_number);
3259 p2p->cfg->model_number = NULL;
3260 if (model_number) {
3261 p2p->cfg->model_number = os_strdup(model_number);
3262 if (p2p->cfg->model_number == NULL)
3263 return -1;
3264 }
3265
3266 return 0;
3267 }
3268
3269
3270 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
3271 {
3272 os_free(p2p->cfg->serial_number);
3273 p2p->cfg->serial_number = NULL;
3274 if (serial_number) {
3275 p2p->cfg->serial_number = os_strdup(serial_number);
3276 if (p2p->cfg->serial_number == NULL)
3277 return -1;
3278 }
3279
3280 return 0;
3281 }
3282
3283
3284 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
3285 {
3286 p2p->cfg->config_methods = config_methods;
3287 }
3288
3289
3290 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
3291 {
3292 os_memcpy(p2p->cfg->uuid, uuid, 16);
3293 }
3294
3295
3296 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
3297 {
3298 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
3299 return 0;
3300 }
3301
3302
3303 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
3304 size_t num_dev_types)
3305 {
3306 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
3307 num_dev_types = P2P_SEC_DEVICE_TYPES;
3308 p2p->cfg->num_sec_dev_types = num_dev_types;
3309 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
3310 return 0;
3311 }
3312
3313
3314 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
3315 {
3316 int i;
3317
3318 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
3319 wpabuf_free(p2p->wps_vendor_ext[i]);
3320 p2p->wps_vendor_ext[i] = NULL;
3321 }
3322 }
3323
3324
3325 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
3326 const struct wpabuf *vendor_ext)
3327 {
3328 int i;
3329
3330 if (vendor_ext == NULL)
3331 return -1;
3332
3333 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
3334 if (p2p->wps_vendor_ext[i] == NULL)
3335 break;
3336 }
3337 if (i >= P2P_MAX_WPS_VENDOR_EXT)
3338 return -1;
3339
3340 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
3341 if (p2p->wps_vendor_ext[i] == NULL)
3342 return -1;
3343
3344 return 0;
3345 }
3346
3347
3348 int p2p_set_country(struct p2p_data *p2p, const char *country)
3349 {
3350 os_memcpy(p2p->cfg->country, country, 3);
3351 return 0;
3352 }
3353
3354
3355 static int p2p_pre_find_operation(struct p2p_data *p2p, struct p2p_device *dev)
3356 {
3357 int res;
3358
3359 if (dev->sd_pending_bcast_queries == 0) {
3360 /* Initialize with total number of registered broadcast
3361 * SD queries. */
3362 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
3363 }
3364
3365 res = p2p_start_sd(p2p, dev);
3366 if (res == -2)
3367 return -2;
3368 if (res == 0)
3369 return 1;
3370
3371 if (dev->req_config_methods &&
3372 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
3373 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
3374 MACSTR_SEC " (config methods 0x%x)",
3375 MAC2STR_SEC(dev->info.p2p_device_addr),
3376 dev->req_config_methods);
3377 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
3378 return 1;
3379 }
3380
3381 return 0;
3382 }
3383
3384
3385 void p2p_continue_find(struct p2p_data *p2p)
3386 {
3387 struct p2p_device *dev;
3388 int found, res;
3389
3390 p2p_set_state(p2p, P2P_SEARCH);
3391
3392 /* Continue from the device following the last iteration */
3393 found = 0;
3394 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3395 if (dev == p2p->last_p2p_find_oper) {
3396 found = 1;
3397 continue;
3398 }
3399 if (!found)
3400 continue;
3401 res = p2p_pre_find_operation(p2p, dev);
3402 if (res > 0) {
3403 p2p->last_p2p_find_oper = dev;
3404 return;
3405 }
3406 if (res == -2)
3407 goto skip_sd;
3408 }
3409
3410 /*
3411 * Wrap around to the beginning of the list and continue until the last
3412 * iteration device.
3413 */
3414 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3415 res = p2p_pre_find_operation(p2p, dev);
3416 if (res > 0) {
3417 p2p->last_p2p_find_oper = dev;
3418 return;
3419 }
3420 if (res == -2)
3421 goto skip_sd;
3422 if (dev == p2p->last_p2p_find_oper)
3423 break;
3424 }
3425
3426 skip_sd:
3427 os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
3428 p2p_listen_in_find(p2p, 1);
3429 }
3430
3431
3432 static void p2p_sd_cb(struct p2p_data *p2p, int success)
3433 {
3434 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
3435 success);
3436 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3437
3438 if (!success) {
3439 if (p2p->sd_peer) {
3440 if (is_zero_ether_addr(p2p->sd_query_no_ack)) {
3441 os_memcpy(p2p->sd_query_no_ack,
3442 p2p->sd_peer->info.p2p_device_addr,
3443 ETH_ALEN);
3444 p2p_dbg(p2p,
3445 "First SD Query no-ACK in this search iteration: "
3446 MACSTR_SEC, MAC2STR_SEC(p2p->sd_query_no_ack));
3447 }
3448 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3449 }
3450 p2p->sd_peer = NULL;
3451 if (p2p->state != P2P_IDLE)
3452 p2p_continue_find(p2p);
3453 return;
3454 }
3455
3456 if (p2p->sd_peer == NULL) {
3457 p2p_dbg(p2p, "No SD peer entry known");
3458 if (p2p->state != P2P_IDLE)
3459 p2p_continue_find(p2p);
3460 return;
3461 }
3462
3463 if (p2p->sd_query && p2p->sd_query->for_all_peers) {
3464 /* Update the pending broadcast SD query count for this device
3465 */
3466 p2p->sd_peer->sd_pending_bcast_queries--;
3467
3468 /*
3469 * If there are no pending broadcast queries for this device,
3470 * mark it as done (-1).
3471 */
3472 if (p2p->sd_peer->sd_pending_bcast_queries == 0)
3473 p2p->sd_peer->sd_pending_bcast_queries = -1;
3474 }
3475
3476 /* Wait for response from the peer */
3477 p2p_set_state(p2p, P2P_SD_DURING_FIND);
3478 p2p_set_timeout(p2p, 0, 200000);
3479 }
3480
3481
3482 /**
3483 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3484 * @p2p: P2P module context from p2p_init()
3485 */
3486 static void p2p_retry_pd(struct p2p_data *p2p)
3487 {
3488 struct p2p_device *dev;
3489
3490 /*
3491 * Retry the prov disc req attempt only for the peer that the user had
3492 * requested.
3493 */
3494
3495 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3496 if (os_memcmp(p2p->pending_pd_devaddr,
3497 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3498 continue;
3499 if (!dev->req_config_methods)
3500 continue;
3501
3502 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
3503 MACSTR_SEC " (config methods 0x%x)",
3504 MAC2STR_SEC(dev->info.p2p_device_addr),
3505 dev->req_config_methods);
3506 p2p_send_prov_disc_req(p2p, dev,
3507 dev->flags & P2P_DEV_PD_FOR_JOIN,
3508 p2p->pd_force_freq);
3509 return;
3510 }
3511 }
3512
3513
3514 static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
3515 {
3516 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
3517 success);
3518
3519 /*
3520 * Postpone resetting the pending action state till after we actually
3521 * time out. This allows us to take some action like notifying any
3522 * interested parties about no response to the request.
3523 *
3524 * When the timer (below) goes off we check in IDLE, SEARCH, or
3525 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3526 * requests in, if this was still pending and then raise notification.
3527 */
3528
3529 if (!success) {
3530 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3531
3532 if (p2p->user_initiated_pd &&
3533 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
3534 {
3535 /* Retry request from timeout to avoid busy loops */
3536 p2p->pending_action_state = P2P_PENDING_PD;
3537 p2p_set_timeout(p2p, 0, 50000);
3538 } else if (p2p->state != P2P_IDLE)
3539 p2p_continue_find(p2p);
3540 else if (p2p->user_initiated_pd) {
3541 p2p->pending_action_state = P2P_PENDING_PD;
3542 p2p_set_timeout(p2p, 0, 300000);
3543 }
3544 return;
3545 }
3546
3547 /*
3548 * If after PD Request the peer doesn't expect to receive PD Response
3549 * the PD Request ACK indicates a completion of the current PD. This
3550 * happens only on the advertiser side sending the follow-on PD Request
3551 * with the status different than 12 (Success: accepted by user).
3552 */
3553 if (p2p->p2ps_prov && !p2p->p2ps_prov->pd_seeker &&
3554 p2p->p2ps_prov->status != P2P_SC_SUCCESS_DEFERRED) {
3555 p2p_dbg(p2p, "P2PS PD completion on Follow-on PD Request ACK");
3556
3557 if (p2p->send_action_in_progress) {
3558 p2p->send_action_in_progress = 0;
3559 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3560 }
3561
3562 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3563
3564 if (p2p->cfg->p2ps_prov_complete) {
3565 p2p->cfg->p2ps_prov_complete(
3566 p2p->cfg->cb_ctx,
3567 p2p->p2ps_prov->status,
3568 p2p->p2ps_prov->adv_mac,
3569 p2p->p2ps_prov->adv_mac,
3570 p2p->p2ps_prov->session_mac,
3571 NULL, p2p->p2ps_prov->adv_id,
3572 p2p->p2ps_prov->session_id,
3573 0, 0, NULL, 0, 0, 0,
3574 NULL, NULL, 0, 0, NULL, 0);
3575 }
3576
3577 if (p2p->user_initiated_pd)
3578 p2p_reset_pending_pd(p2p);
3579
3580 p2ps_prov_free(p2p);
3581 return;
3582 }
3583
3584 /*
3585 * This postponing, of resetting pending_action_state, needs to be
3586 * done only for user initiated PD requests and not internal ones.
3587 */
3588 if (p2p->user_initiated_pd)
3589 p2p->pending_action_state = P2P_PENDING_PD;
3590 else
3591 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3592
3593 /* Wait for response from the peer */
3594 if (p2p->state == P2P_SEARCH)
3595 p2p_set_state(p2p, P2P_PD_DURING_FIND);
3596 p2p_set_timeout(p2p, 0, 200000);
3597 }
3598
3599
3600 static void p2p_prov_disc_resp_cb(struct p2p_data *p2p, int success)
3601 {
3602 p2p_dbg(p2p, "Provision Discovery Response TX callback: success=%d",
3603 success);
3604
3605 if (p2p->send_action_in_progress) {
3606 p2p->send_action_in_progress = 0;
3607 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3608 }
3609
3610 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3611
3612 if (!success) {
3613 if (p2p->state == P2P_SEARCH)
3614 p2p_continue_find(p2p);
3615 return;
3616 }
3617
3618 if (!p2p->cfg->prov_disc_resp_cb ||
3619 p2p->cfg->prov_disc_resp_cb(p2p->cfg->cb_ctx) < 1) {
3620 if (p2p->state == P2P_SEARCH)
3621 p2p_continue_find(p2p);
3622 return;
3623 }
3624
3625 p2p_dbg(p2p,
3626 "Post-Provision Discovery operations started - do not try to continue other P2P operations");
3627 }
3628
3629
3630 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
3631 struct os_reltime *rx_time, int level, const u8 *ies,
3632 size_t ies_len)
3633 {
3634 if (os_reltime_before(rx_time, &p2p->find_start)) {
3635 /*
3636 * The driver may have cached (e.g., in cfg80211 BSS table) the
3637 * scan results for relatively long time. To avoid reporting
3638 * stale information, update P2P peers only based on results
3639 * that have based on frames received after the last p2p_find
3640 * operation was started.
3641 */
3642 p2p_dbg(p2p, "Ignore old scan result for " MACSTR_SEC
3643 " (rx_time=%u.%06u find_start=%u.%06u)",
3644 MAC2STR_SEC(bssid), (unsigned int) rx_time->sec,
3645 (unsigned int) rx_time->usec,
3646 (unsigned int) p2p->find_start.sec,
3647 (unsigned int) p2p->find_start.usec);
3648 return 0;
3649 }
3650
3651 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
3652
3653 return 0;
3654 }
3655
3656
3657 void p2p_scan_res_handled(struct p2p_data *p2p, unsigned int delay)
3658 {
3659 if (!p2p->p2p_scan_running) {
3660 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
3661 }
3662 p2p->p2p_scan_running = 0;
3663
3664 /* Use this delay only when p2p_find doesn't set it */
3665 if (!p2p->search_delay)
3666 p2p->search_delay = delay;
3667
3668 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
3669
3670 if (p2p_run_after_scan(p2p))
3671 return;
3672 if (p2p->state == P2P_SEARCH)
3673 p2p_continue_find(p2p);
3674 }
3675
3676
3677 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id,
3678 unsigned int bands)
3679 {
3680 u8 dev_capab;
3681 u8 *len;
3682
3683 #ifdef CONFIG_WIFI_DISPLAY
3684 if (p2p->wfd_ie_probe_req)
3685 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
3686 #endif /* CONFIG_WIFI_DISPLAY */
3687
3688 if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3689 wpabuf_put_buf(ies,
3690 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3691
3692 len = p2p_buf_add_ie_hdr(ies);
3693
3694 dev_capab = p2p->dev_capab & ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3695
3696 /* P2PS requires Probe Request frames to include SD bit */
3697 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3698 dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
3699
3700 p2p_buf_add_capability(ies, dev_capab, 0);
3701
3702 if (dev_id)
3703 p2p_buf_add_device_id(ies, dev_id);
3704 if (p2p->cfg->reg_class && p2p->cfg->channel)
3705 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
3706 p2p->cfg->reg_class,
3707 p2p->cfg->channel);
3708 if (p2p->ext_listen_interval)
3709 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
3710 p2p->ext_listen_interval);
3711
3712 if (bands & BAND_60_GHZ)
3713 p2p_buf_add_device_info(ies, p2p, NULL);
3714
3715 if (p2p->p2ps_seek && p2p->p2ps_seek_count)
3716 p2p_buf_add_service_hash(ies, p2p);
3717
3718 /* TODO: p2p_buf_add_operating_channel() if GO */
3719 p2p_buf_update_ie_hdr(ies, len);
3720 }
3721
3722
3723 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
3724 {
3725 size_t len = 100;
3726
3727 #ifdef CONFIG_WIFI_DISPLAY
3728 if (p2p && p2p->wfd_ie_probe_req)
3729 len += wpabuf_len(p2p->wfd_ie_probe_req);
3730 #endif /* CONFIG_WIFI_DISPLAY */
3731
3732 if (p2p && p2p->vendor_elem &&
3733 p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
3734 len += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
3735
3736 return len;
3737 }
3738
3739
3740 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
3741 {
3742 return p2p_attr_text(p2p_ie, buf, end);
3743 }
3744
3745
3746 static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
3747 {
3748 struct p2p_device *dev = p2p->go_neg_peer;
3749 int timeout;
3750
3751 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
3752
3753 if (dev == NULL) {
3754 p2p_dbg(p2p, "No pending GO Negotiation");
3755 return;
3756 }
3757
3758 if (success) {
3759 if (dev->flags & P2P_DEV_USER_REJECTED) {
3760 p2p_set_state(p2p, P2P_IDLE);
3761 return;
3762 }
3763 } else if (dev->go_neg_req_sent) {
3764 /* Cancel the increment from p2p_connect_send() on failure */
3765 dev->go_neg_req_sent--;
3766 }
3767
3768 if (!success &&
3769 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
3770 !is_zero_ether_addr(dev->member_in_go_dev)) {
3771 p2p_dbg(p2p, "Peer " MACSTR_SEC " did not acknowledge request - try to use device discoverability through its GO",
3772 MAC2STR_SEC(dev->info.p2p_device_addr));
3773 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3774 p2p_send_dev_disc_req(p2p, dev);
3775 return;
3776 }
3777
3778 /*
3779 * Use P2P find, if needed, to find the other device from its listen
3780 * channel.
3781 */
3782 p2p_set_state(p2p, P2P_CONNECT);
3783 #ifdef HARMONY_P2P_CONNECTIVITY_PATCH
3784 timeout = success ? P2P_CONNECT_TIMEOUT_MAX_USEC : P2P_CONNECT_TIMEOUT_MIN_USEC;
3785 #else
3786 timeout = success ? P2P_CONNECT_TIMEOUT_DEFAULT_USEC : P2P_CONNECT_TIMEOUT_MIN_USEC;
3787 #endif
3788 if (!success && p2p->go_neg_peer &&
3789 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
3790 unsigned int r;
3791 /*
3792 * Peer is expected to wait our response and we will skip the
3793 * listen phase. Add some randomness to the wait time here to
3794 * make it less likely to hit cases where we could end up in
3795 * sync with peer not listening.
3796 */
3797 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
3798 r = 0;
3799 timeout += r % 100000;
3800 }
3801 p2p_set_timeout(p2p, 0, timeout);
3802 }
3803
3804
3805 static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
3806 {
3807 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
3808 success);
3809 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
3810 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
3811 return;
3812 }
3813 p2p_set_state(p2p, P2P_CONNECT);
3814 #if defined(CONFIG_OHOS_P2P)
3815 p2p_set_timeout(p2p, 0, 800000);
3816 #elif defined(CONFIG_P2P_OPT)
3817 p2p_set_timeout(p2p, 0, P2P_CONNECT_TIMEOUT_USEC);
3818 #else
3819 p2p_set_timeout(p2p, 0, 500000);
3820 #endif // CONFIG_OHOS_P2P
3821 }
3822
3823
3824 static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
3825 const u8 *addr)
3826 {
3827 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
3828 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
3829 p2p_go_neg_failed(p2p, p2p->go_neg_peer->status);
3830 return;
3831 }
3832
3833 if (success) {
3834 struct p2p_device *dev;
3835 dev = p2p_get_device(p2p, addr);
3836 if (dev &&
3837 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
3838 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
3839 }
3840
3841 if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
3842 p2p_continue_find(p2p);
3843 }
3844
3845
3846 static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
3847 enum p2p_send_action_result result)
3848 {
3849 struct p2p_device *dev;
3850
3851 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
3852 if (result == P2P_SEND_ACTION_FAILED) {
3853 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3854 p2p_go_neg_failed(p2p, -1);
3855 return;
3856 }
3857
3858 dev = p2p->go_neg_peer;
3859
3860 if (result == P2P_SEND_ACTION_NO_ACK) {
3861 /*
3862 * Retry GO Negotiation Confirmation
3863 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3864 * ACK for confirmation.
3865 */
3866 if (dev && dev->go_neg_conf &&
3867 dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
3868 p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
3869 dev->go_neg_conf_sent);
3870 p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
3871 if (p2p_send_action(p2p, dev->go_neg_conf_freq,
3872 dev->info.p2p_device_addr,
3873 p2p->cfg->dev_addr,
3874 dev->info.p2p_device_addr,
3875 wpabuf_head(dev->go_neg_conf),
3876 wpabuf_len(dev->go_neg_conf), 0) >=
3877 0) {
3878 dev->go_neg_conf_sent++;
3879 return;
3880 }
3881 p2p_dbg(p2p, "Failed to re-send Action frame");
3882
3883 /*
3884 * Continue with the assumption that the first attempt
3885 * went through and just the ACK frame was lost.
3886 */
3887 }
3888
3889 /*
3890 * It looks like the TX status for GO Negotiation Confirm is
3891 * often showing failure even when the peer has actually
3892 * received the frame. Since the peer may change channels
3893 * immediately after having received the frame, we may not see
3894 * an Ack for retries, so just dropping a single frame may
3895 * trigger this. To allow the group formation to succeed if the
3896 * peer did indeed receive the frame, continue regardless of
3897 * the TX status.
3898 */
3899 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
3900 }
3901
3902 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3903
3904 if (dev == NULL)
3905 return;
3906
3907 p2p_go_complete(p2p, dev);
3908 }
3909
3910
3911 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
3912 const u8 *src, const u8 *bssid,
3913 enum p2p_send_action_result result)
3914 {
3915 enum p2p_pending_action_state state;
3916 int success;
3917
3918 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR_SEC
3919 " src=" MACSTR_SEC " bssid=" MACSTR_SEC " result=%d p2p_state=%s)",
3920 p2p->pending_action_state, freq, MAC2STR_SEC(dst), MAC2STR_SEC(src),
3921 MAC2STR_SEC(bssid), result, p2p_state_txt(p2p->state));
3922 success = result == P2P_SEND_ACTION_SUCCESS;
3923 state = p2p->pending_action_state;
3924 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3925 switch (state) {
3926 case P2P_NO_PENDING_ACTION:
3927 if (p2p->send_action_in_progress) {
3928 p2p->send_action_in_progress = 0;
3929 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3930 }
3931 break;
3932 case P2P_PENDING_GO_NEG_REQUEST:
3933 p2p_go_neg_req_cb(p2p, success);
3934 break;
3935 case P2P_PENDING_GO_NEG_RESPONSE:
3936 p2p_go_neg_resp_cb(p2p, success);
3937 break;
3938 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
3939 p2p_go_neg_resp_failure_cb(p2p, success, dst);
3940 break;
3941 case P2P_PENDING_GO_NEG_CONFIRM:
3942 p2p_go_neg_conf_cb(p2p, result);
3943 break;
3944 case P2P_PENDING_SD:
3945 p2p_sd_cb(p2p, success);
3946 break;
3947 case P2P_PENDING_PD:
3948 p2p_prov_disc_cb(p2p, success);
3949 break;
3950 case P2P_PENDING_PD_RESPONSE:
3951 p2p_prov_disc_resp_cb(p2p, success);
3952 break;
3953 case P2P_PENDING_INVITATION_REQUEST:
3954 p2p_invitation_req_cb(p2p, success);
3955 break;
3956 case P2P_PENDING_INVITATION_RESPONSE:
3957 p2p_invitation_resp_cb(p2p, success);
3958 break;
3959 case P2P_PENDING_DEV_DISC_REQUEST:
3960 p2p_dev_disc_req_cb(p2p, success);
3961 break;
3962 case P2P_PENDING_DEV_DISC_RESPONSE:
3963 p2p_dev_disc_resp_cb(p2p, success);
3964 break;
3965 case P2P_PENDING_GO_DISC_REQ:
3966 p2p_go_disc_req_cb(p2p, success);
3967 break;
3968 }
3969 }
3970
3971
3972 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3973 unsigned int duration)
3974 {
3975 if (freq == p2p->pending_client_disc_freq) {
3976 p2p_dbg(p2p, "Client discoverability remain-awake completed");
3977 p2p->pending_client_disc_freq = 0;
3978 return;
3979 }
3980
3981 #ifndef OPEN_HARMONY_MIRACAST_SINK_OPT
3982 if (freq != p2p->pending_listen_freq) {
3983 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
3984 freq, duration, p2p->pending_listen_freq);
3985 return;
3986 }
3987 #endif
3988
3989 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
3990 p2p->pending_listen_sec, p2p->pending_listen_usec,
3991 p2p->pending_listen_freq);
3992
3993 p2p->in_listen = 1;
3994 p2p->drv_in_listen = freq;
3995 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3996 /*
3997 * Add 20 msec extra wait to avoid race condition with driver
3998 * remain-on-channel end event, i.e., give driver more time to
3999 * complete the operation before our timeout expires.
4000 */
4001
4002 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4003 p2p_set_timeout(p2p, p2p->pending_listen_sec,
4004 p2p->pending_listen_usec + HM_P2P_LISTEN_EXTRA_WAIT_TIME);
4005 #else
4006 p2p_set_timeout(p2p, p2p->pending_listen_sec,
4007 p2p->pending_listen_usec + 20000);
4008 #endif
4009 }
4010
4011 p2p->pending_listen_freq = 0;
4012 }
4013
4014
4015 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
4016 {
4017 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
4018
4019 p2p->drv_in_listen = 0;
4020 if (p2p->in_listen)
4021 return 0; /* Internal timeout will trigger the next step */
4022
4023 if (p2p->state == P2P_WAIT_PEER_CONNECT && p2p->go_neg_peer &&
4024 p2p->pending_listen_freq) {
4025 /*
4026 * Better wait a bit if the driver is unable to start
4027 * offchannel operation for some reason to continue with
4028 * P2P_WAIT_PEER_(IDLE/CONNECT) state transitions.
4029 */
4030 p2p_dbg(p2p,
4031 "Listen operation did not seem to start - delay idle phase to avoid busy loop");
4032 p2p_set_timeout(p2p, 0, 100000);
4033 return 1;
4034 }
4035
4036 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
4037 if (p2p->go_neg_peer->connect_reqs >= 120) {
4038 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
4039 p2p_go_neg_failed(p2p, -1);
4040 return 0;
4041 }
4042
4043 p2p_set_state(p2p, P2P_CONNECT);
4044 p2p_connect_send(p2p, p2p->go_neg_peer);
4045 return 1;
4046 } else if (p2p->state == P2P_SEARCH) {
4047 if (p2p->p2p_scan_running) {
4048 /*
4049 * Search is already in progress. This can happen if
4050 * an Action frame RX is reported immediately after
4051 * the end of a remain-on-channel operation and the
4052 * response frame to that is sent using an offchannel
4053 * operation while in p2p_find. Avoid an attempt to
4054 * restart a scan here.
4055 */
4056 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
4057 return 1;
4058 }
4059 if (p2p->pending_listen_freq) {
4060 /*
4061 * Better wait a bit if the driver is unable to start
4062 * offchannel operation for some reason. p2p_search()
4063 * will be started from internal timeout.
4064 */
4065 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
4066 p2p_set_timeout(p2p, 0, 100000);
4067 return 1;
4068 }
4069 if (p2p->search_delay) {
4070 p2p_dbg(p2p, "Delay search operation by %u ms",
4071 p2p->search_delay);
4072 p2p_set_timeout(p2p, p2p->search_delay / 1000,
4073 (p2p->search_delay % 1000) * 1000);
4074 return 1;
4075 }
4076 p2p_search(p2p);
4077 return 1;
4078 }
4079
4080 return 0;
4081 }
4082
4083
4084 static void p2p_timeout_connect(struct p2p_data *p2p)
4085 {
4086 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
4087 if (p2p->go_neg_peer &&
4088 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
4089 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
4090 p2p_go_neg_failed(p2p, -1);
4091 return;
4092 }
4093 if (p2p->go_neg_peer &&
4094 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
4095 p2p->go_neg_peer->connect_reqs < 120) {
4096 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
4097 p2p_connect_send(p2p, p2p->go_neg_peer);
4098 return;
4099 }
4100 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
4101 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
4102 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
4103 p2p_set_timeout(p2p, 0, 30000);
4104 return;
4105 }
4106 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
4107 p2p_listen_in_find(p2p, 0);
4108 }
4109
4110
4111 static void p2p_timeout_connect_listen(struct p2p_data *p2p)
4112 {
4113 if (p2p->go_neg_peer) {
4114 if (p2p->drv_in_listen) {
4115 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
4116 return;
4117 }
4118
4119 if (p2p->go_neg_peer->connect_reqs >= 120) {
4120 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
4121 p2p_go_neg_failed(p2p, -1);
4122 return;
4123 }
4124
4125 p2p_set_state(p2p, P2P_CONNECT);
4126 p2p_connect_send(p2p, p2p->go_neg_peer);
4127 } else
4128 p2p_set_state(p2p, P2P_IDLE);
4129 }
4130
4131
4132 static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
4133 {
4134 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
4135
4136 if (p2p->cfg->is_concurrent_session_active &&
4137 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
4138 p2p_set_timeout(p2p, 0, 500000);
4139 else
4140 p2p_set_timeout(p2p, 0, 200000);
4141 }
4142
4143
4144 static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
4145 {
4146 struct p2p_device *dev = p2p->go_neg_peer;
4147
4148 if (dev == NULL) {
4149 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
4150 return;
4151 }
4152
4153 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
4154 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
4155 if (p2p->pending_listen_freq) {
4156 p2p_dbg(p2p, "Clear pending_listen_freq for %s", __func__);
4157 p2p->pending_listen_freq = 0;
4158 }
4159 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
4160 p2p_listen_in_find(p2p, 0);
4161 }
4162
4163
4164 static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
4165 {
4166 p2p_dbg(p2p, "Service Discovery Query timeout");
4167 if (p2p->sd_peer) {
4168 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
4169 p2p->sd_peer = NULL;
4170 }
4171 p2p_continue_find(p2p);
4172 }
4173
4174
4175 static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
4176 {
4177 p2p_dbg(p2p, "Provision Discovery Request timeout");
4178 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
4179 p2p_continue_find(p2p);
4180 }
4181
4182
4183 static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
4184 {
4185 u32 adv_id = 0;
4186 u8 *adv_mac = NULL;
4187
4188 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
4189
4190 /*
4191 * For user initiated PD requests that we have not gotten any responses
4192 * for while in IDLE state, we retry them a couple of times before
4193 * giving up.
4194 */
4195 if (!p2p->user_initiated_pd)
4196 return;
4197
4198 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
4199
4200 if (p2p->pd_retries) {
4201 p2p->pd_retries--;
4202 p2p_retry_pd(p2p);
4203 } else {
4204 struct p2p_device *dev;
4205 int for_join = 0;
4206
4207 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
4208 if (os_memcmp(p2p->pending_pd_devaddr,
4209 dev->info.p2p_device_addr, ETH_ALEN) != 0)
4210 continue;
4211 if (dev->req_config_methods &&
4212 (dev->flags & P2P_DEV_PD_FOR_JOIN))
4213 for_join = 1;
4214 }
4215
4216 if (p2p->p2ps_prov) {
4217 adv_id = p2p->p2ps_prov->adv_id;
4218 adv_mac = p2p->p2ps_prov->adv_mac;
4219 }
4220
4221 if (p2p->cfg->prov_disc_fail)
4222 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
4223 p2p->pending_pd_devaddr,
4224 for_join ?
4225 P2P_PROV_DISC_TIMEOUT_JOIN :
4226 P2P_PROV_DISC_TIMEOUT,
4227 adv_id, adv_mac, NULL);
4228 p2p_reset_pending_pd(p2p);
4229 }
4230 }
4231
4232
4233 static void p2p_timeout_invite(struct p2p_data *p2p)
4234 {
4235 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
4236 p2p_set_state(p2p, P2P_INVITE_LISTEN);
4237 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
4238 /*
4239 * Better remain on operating channel instead of listen channel
4240 * when running a group.
4241 */
4242 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
4243 p2p_set_timeout(p2p, 0, 100000);
4244 return;
4245 }
4246 p2p_listen_in_find(p2p, 0);
4247 }
4248
4249
4250 static void p2p_timeout_invite_listen(struct p2p_data *p2p)
4251 {
4252 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
4253 p2p_set_state(p2p, P2P_INVITE);
4254 p2p_invite_send(p2p, p2p->invite_peer,
4255 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
4256 } else {
4257 if (p2p->invite_peer) {
4258 p2p_dbg(p2p, "Invitation Request retry limit reached");
4259 if (p2p->cfg->invitation_result)
4260 p2p->cfg->invitation_result(
4261 p2p->cfg->cb_ctx, -1, NULL, NULL,
4262 p2p->invite_peer->info.p2p_device_addr,
4263 0, 0);
4264 }
4265 p2p_set_state(p2p, P2P_IDLE);
4266 }
4267 }
4268
4269
4270 static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
4271 {
4272 struct p2p_data *p2p = eloop_ctx;
4273
4274 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
4275
4276 p2p->in_listen = 0;
4277 if (p2p->drv_in_listen) {
4278 p2p_dbg(p2p, "Driver is still in listen state - stop it");
4279 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
4280 }
4281
4282 switch (p2p->state) {
4283 case P2P_IDLE:
4284 /* Check if we timed out waiting for PD req */
4285 if (p2p->pending_action_state == P2P_PENDING_PD)
4286 p2p_timeout_prov_disc_req(p2p);
4287 break;
4288 case P2P_SEARCH:
4289 /* Check if we timed out waiting for PD req */
4290 if (p2p->pending_action_state == P2P_PENDING_PD)
4291 p2p_timeout_prov_disc_req(p2p);
4292 if (p2p->search_delay && !p2p->in_search_delay) {
4293 p2p_dbg(p2p, "Delay search operation by %u ms",
4294 p2p->search_delay);
4295 p2p->in_search_delay = 1;
4296 p2p_set_timeout(p2p, p2p->search_delay / 1000,
4297 (p2p->search_delay % 1000) * 1000);
4298 break;
4299 }
4300 p2p->in_search_delay = 0;
4301 p2p_search(p2p);
4302 break;
4303 case P2P_CONNECT:
4304 p2p_timeout_connect(p2p);
4305 break;
4306 case P2P_CONNECT_LISTEN:
4307 p2p_timeout_connect_listen(p2p);
4308 break;
4309 case P2P_GO_NEG:
4310 break;
4311 case P2P_LISTEN_ONLY:
4312 /* Check if we timed out waiting for PD req */
4313 if (p2p->pending_action_state == P2P_PENDING_PD)
4314 p2p_timeout_prov_disc_req(p2p);
4315
4316 if (p2p->ext_listen_only) {
4317 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
4318 p2p->ext_listen_only = 0;
4319 p2p_set_state(p2p, P2P_IDLE);
4320 }
4321 break;
4322 case P2P_WAIT_PEER_CONNECT:
4323 p2p_timeout_wait_peer_connect(p2p);
4324 break;
4325 case P2P_WAIT_PEER_IDLE:
4326 p2p_timeout_wait_peer_idle(p2p);
4327 break;
4328 case P2P_SD_DURING_FIND:
4329 p2p_timeout_sd_during_find(p2p);
4330 break;
4331 case P2P_PROVISIONING:
4332 break;
4333 case P2P_PD_DURING_FIND:
4334 p2p_timeout_prov_disc_during_find(p2p);
4335 break;
4336 case P2P_INVITE:
4337 p2p_timeout_invite(p2p);
4338 break;
4339 case P2P_INVITE_LISTEN:
4340 p2p_timeout_invite_listen(p2p);
4341 break;
4342 }
4343 }
4344
4345
4346 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
4347 {
4348 struct p2p_device *dev;
4349
4350 dev = p2p_get_device(p2p, peer_addr);
4351 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
4352 MACSTR_SEC, MAC2STR_SEC(peer_addr));
4353 if (dev == NULL) {
4354 p2p_dbg(p2p, "Peer " MACSTR_SEC " unknown", MAC2STR_SEC(peer_addr));
4355 return -1;
4356 }
4357 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
4358 dev->flags |= P2P_DEV_USER_REJECTED;
4359 return 0;
4360 }
4361
4362
4363 const char * p2p_wps_method_text(enum p2p_wps_method method)
4364 {
4365 switch (method) {
4366 case WPS_NOT_READY:
4367 return "not-ready";
4368 case WPS_PIN_DISPLAY:
4369 return "Display";
4370 case WPS_PIN_KEYPAD:
4371 return "Keypad";
4372 case WPS_PBC:
4373 return "PBC";
4374 case WPS_NFC:
4375 return "NFC";
4376 case WPS_P2PS:
4377 return "P2PS";
4378 }
4379
4380 return "??";
4381 }
4382
4383
4384 static const char * p2p_go_state_text(enum p2p_go_state go_state)
4385 {
4386 switch (go_state) {
4387 case UNKNOWN_GO:
4388 return "unknown";
4389 case LOCAL_GO:
4390 return "local";
4391 case REMOTE_GO:
4392 return "remote";
4393 }
4394
4395 return "??";
4396 }
4397
4398
4399 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
4400 const u8 *addr, int next)
4401 {
4402 struct p2p_device *dev;
4403
4404 if (addr)
4405 dev = p2p_get_device(p2p, addr);
4406 else
4407 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4408
4409 if (dev && next) {
4410 dev = dl_list_first(&dev->list, struct p2p_device, list);
4411 if (&dev->list == &p2p->devices)
4412 dev = NULL;
4413 }
4414
4415 if (dev == NULL)
4416 return NULL;
4417
4418 return &dev->info;
4419 }
4420
4421
4422 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
4423 char *buf, size_t buflen)
4424 {
4425 struct p2p_device *dev;
4426 int res;
4427 char *pos, *end;
4428 struct os_reltime now;
4429
4430 if (info == NULL)
4431 return -1;
4432
4433 dev = (struct p2p_device *) (((u8 *) info) -
4434 offsetof(struct p2p_device, info));
4435
4436 pos = buf;
4437 end = buf + buflen;
4438
4439 os_get_reltime(&now);
4440 res = os_snprintf(pos, end - pos,
4441 "age=%d\n"
4442 "listen_freq=%d\n"
4443 "wps_method=%s\n"
4444 "interface_addr=" MACSTR "\n"
4445 "member_in_go_dev=" MACSTR "\n"
4446 "member_in_go_iface=" MACSTR "\n"
4447 "go_neg_req_sent=%d\n"
4448 "go_state=%s\n"
4449 "dialog_token=%u\n"
4450 "intended_addr=" MACSTR "\n"
4451 "country=%c%c\n"
4452 "oper_freq=%d\n"
4453 "req_config_methods=0x%x\n"
4454 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
4455 "status=%d\n"
4456 "invitation_reqs=%u\n",
4457 (int) (now.sec - dev->last_seen.sec),
4458 dev->listen_freq,
4459 p2p_wps_method_text(dev->wps_method),
4460 MAC2STR(dev->interface_addr),
4461 MAC2STR(dev->member_in_go_dev),
4462 MAC2STR(dev->member_in_go_iface),
4463 dev->go_neg_req_sent,
4464 p2p_go_state_text(dev->go_state),
4465 dev->dialog_token,
4466 MAC2STR(dev->intended_addr),
4467 dev->country[0] ? dev->country[0] : '_',
4468 dev->country[1] ? dev->country[1] : '_',
4469 dev->oper_freq,
4470 dev->req_config_methods,
4471 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
4472 "[PROBE_REQ_ONLY]" : "",
4473 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
4474 dev->flags & P2P_DEV_NOT_YET_READY ?
4475 "[NOT_YET_READY]" : "",
4476 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
4477 "[PD_PEER_DISPLAY]" : "",
4478 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
4479 "[PD_PEER_KEYPAD]" : "",
4480 dev->flags & P2P_DEV_PD_PEER_P2PS ?
4481 "[PD_PEER_P2PS]" : "",
4482 dev->flags & P2P_DEV_USER_REJECTED ?
4483 "[USER_REJECTED]" : "",
4484 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
4485 "[PEER_WAITING_RESPONSE]" : "",
4486 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
4487 "[PREFER_PERSISTENT_GROUP]" : "",
4488 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
4489 "[WAIT_GO_NEG_RESPONSE]" : "",
4490 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
4491 "[WAIT_GO_NEG_CONFIRM]" : "",
4492 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
4493 "[GROUP_CLIENT_ONLY]" : "",
4494 dev->flags & P2P_DEV_FORCE_FREQ ?
4495 "[FORCE_FREQ]" : "",
4496 dev->flags & P2P_DEV_PD_FOR_JOIN ?
4497 "[PD_FOR_JOIN]" : "",
4498 dev->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT ?
4499 "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
4500 dev->status,
4501 dev->invitation_reqs);
4502 if (os_snprintf_error(end - pos, res))
4503 return pos - buf;
4504 pos += res;
4505
4506 if (dev->ext_listen_period) {
4507 res = os_snprintf(pos, end - pos,
4508 "ext_listen_period=%u\n"
4509 "ext_listen_interval=%u\n",
4510 dev->ext_listen_period,
4511 dev->ext_listen_interval);
4512 if (os_snprintf_error(end - pos, res))
4513 return pos - buf;
4514 pos += res;
4515 }
4516
4517 if (dev->oper_ssid_len) {
4518 res = os_snprintf(pos, end - pos,
4519 "oper_ssid=%s\n",
4520 wpa_ssid_txt(dev->oper_ssid,
4521 dev->oper_ssid_len));
4522 if (os_snprintf_error(end - pos, res))
4523 return pos - buf;
4524 pos += res;
4525 }
4526
4527 #ifdef CONFIG_WIFI_DISPLAY
4528 if (dev->info.wfd_subelems) {
4529 res = os_snprintf(pos, end - pos, "wfd_subelems=");
4530 if (os_snprintf_error(end - pos, res))
4531 return pos - buf;
4532 pos += res;
4533
4534 pos += wpa_snprintf_hex(pos, end - pos,
4535 wpabuf_head(dev->info.wfd_subelems),
4536 wpabuf_len(dev->info.wfd_subelems));
4537
4538 res = os_snprintf(pos, end - pos, "\n");
4539 if (os_snprintf_error(end - pos, res))
4540 return pos - buf;
4541 pos += res;
4542 }
4543 #endif /* CONFIG_WIFI_DISPLAY */
4544
4545 return pos - buf;
4546 }
4547
4548
4549 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
4550 {
4551 return p2p_get_device(p2p, addr) != NULL;
4552 }
4553
4554
4555 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
4556 {
4557 if (enabled) {
4558 p2p_dbg(p2p, "Client discoverability enabled");
4559 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4560 } else {
4561 p2p_dbg(p2p, "Client discoverability disabled");
4562 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
4563 }
4564 }
4565
4566
4567 static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
4568 u32 duration2, u32 interval2)
4569 {
4570 struct wpabuf *req;
4571 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
4572 u8 *len;
4573
4574 req = wpabuf_alloc(100);
4575 if (req == NULL)
4576 return NULL;
4577
4578 if (duration1 || interval1) {
4579 os_memset(&desc1, 0, sizeof(desc1));
4580 desc1.count_type = 1;
4581 desc1.duration = duration1;
4582 desc1.interval = interval1;
4583 ptr1 = &desc1;
4584
4585 if (duration2 || interval2) {
4586 os_memset(&desc2, 0, sizeof(desc2));
4587 desc2.count_type = 2;
4588 desc2.duration = duration2;
4589 desc2.interval = interval2;
4590 ptr2 = &desc2;
4591 }
4592 }
4593
4594 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
4595 len = p2p_buf_add_ie_hdr(req);
4596 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
4597 p2p_buf_update_ie_hdr(req, len);
4598
4599 return req;
4600 }
4601
4602
4603 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
4604 const u8 *own_interface_addr, unsigned int freq,
4605 u32 duration1, u32 interval1, u32 duration2,
4606 u32 interval2)
4607 {
4608 struct wpabuf *req;
4609
4610 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR_SEC
4611 " (own interface " MACSTR_SEC ") freq=%u dur1=%u int1=%u "
4612 "dur2=%u int2=%u",
4613 MAC2STR_SEC(go_interface_addr), MAC2STR_SEC(own_interface_addr),
4614 freq, duration1, interval1, duration2, interval2);
4615
4616 req = p2p_build_presence_req(duration1, interval1, duration2,
4617 interval2);
4618 if (req == NULL)
4619 return -1;
4620
4621 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
4622 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
4623 go_interface_addr,
4624 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
4625 p2p_dbg(p2p, "Failed to send Action frame");
4626 }
4627 wpabuf_free(req);
4628
4629 return 0;
4630 }
4631
4632
4633 static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
4634 size_t noa_len, u8 dialog_token)
4635 {
4636 struct wpabuf *resp;
4637 u8 *len;
4638
4639 resp = wpabuf_alloc(100 + noa_len);
4640 if (resp == NULL)
4641 return NULL;
4642
4643 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
4644 len = p2p_buf_add_ie_hdr(resp);
4645 p2p_buf_add_status(resp, status);
4646 if (noa) {
4647 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
4648 wpabuf_put_le16(resp, noa_len);
4649 wpabuf_put_data(resp, noa, noa_len);
4650 } else
4651 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
4652 p2p_buf_update_ie_hdr(resp, len);
4653
4654 return resp;
4655 }
4656
4657
4658 static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
4659 const u8 *sa, const u8 *data, size_t len,
4660 int rx_freq)
4661 {
4662 struct p2p_message msg;
4663 u8 status;
4664 struct wpabuf *resp;
4665 size_t g;
4666 struct p2p_group *group = NULL;
4667 int parsed = 0;
4668 u8 noa[50];
4669 int noa_len;
4670
4671 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
4672
4673 for (g = 0; g < p2p->num_groups; g++) {
4674 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
4675 ETH_ALEN) == 0) {
4676 group = p2p->groups[g];
4677 break;
4678 }
4679 }
4680 if (group == NULL) {
4681 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
4682 MACSTR_SEC, MAC2STR_SEC(da));
4683 return;
4684 }
4685
4686 if (p2p_parse(data, len, &msg) < 0) {
4687 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
4688 status = P2P_SC_FAIL_INVALID_PARAMS;
4689 goto fail;
4690 }
4691 parsed = 1;
4692
4693 if (msg.noa == NULL) {
4694 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
4695 status = P2P_SC_FAIL_INVALID_PARAMS;
4696 goto fail;
4697 }
4698
4699 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
4700
4701 fail:
4702 if (p2p->cfg->get_noa)
4703 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
4704 sizeof(noa));
4705 else
4706 noa_len = -1;
4707 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
4708 noa_len > 0 ? noa_len : 0,
4709 msg.dialog_token);
4710 if (parsed)
4711 p2p_parse_free(&msg);
4712 if (resp == NULL)
4713 return;
4714
4715 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
4716 if (p2p_send_action(p2p, rx_freq, sa, da, da,
4717 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
4718 p2p_dbg(p2p, "Failed to send Action frame");
4719 }
4720 wpabuf_free(resp);
4721 }
4722
4723
4724 static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
4725 const u8 *sa, const u8 *data, size_t len)
4726 {
4727 struct p2p_message msg;
4728
4729 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
4730
4731 if (p2p_parse(data, len, &msg) < 0) {
4732 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
4733 return;
4734 }
4735
4736 if (msg.status == NULL || msg.noa == NULL) {
4737 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
4738 p2p_parse_free(&msg);
4739 return;
4740 }
4741
4742 if (p2p->cfg->presence_resp) {
4743 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
4744 msg.noa, msg.noa_len);
4745 }
4746
4747 if (*msg.status) {
4748 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
4749 *msg.status);
4750 p2p_parse_free(&msg);
4751 return;
4752 }
4753
4754 p2p_dbg(p2p, "P2P Presence Request was accepted");
4755 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
4756 msg.noa, msg.noa_len);
4757 /* TODO: process NoA */
4758 p2p_parse_free(&msg);
4759 }
4760
4761 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4762 void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4763 #else
4764 static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4765 #endif
4766 {
4767 struct p2p_data *p2p = eloop_ctx;
4768
4769 if (p2p->ext_listen_interval) {
4770 /* Schedule next extended listen timeout */
4771
4772 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4773 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
4774 #endif
4775 eloop_register_timeout(p2p->ext_listen_interval_sec,
4776 p2p->ext_listen_interval_usec,
4777 p2p_ext_listen_timeout, p2p, NULL);
4778 }
4779
4780 if ((p2p->cfg->is_p2p_in_progress &&
4781 p2p->cfg->is_p2p_in_progress(p2p->cfg->cb_ctx)) ||
4782 (p2p->pending_action_state == P2P_PENDING_PD &&
4783 p2p->pd_retries > 0)) {
4784 p2p_dbg(p2p, "Operation in progress - skip Extended Listen timeout (%s)",
4785 p2p_state_txt(p2p->state));
4786 return;
4787 }
4788
4789 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
4790 /*
4791 * This should not really happen, but it looks like the Listen
4792 * command may fail is something else (e.g., a scan) was
4793 * running at an inconvenient time. As a workaround, allow new
4794 * Extended Listen operation to be started.
4795 */
4796 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
4797 p2p->ext_listen_only = 0;
4798 p2p_set_state(p2p, P2P_IDLE);
4799 }
4800
4801 if (p2p->state != P2P_IDLE) {
4802 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
4803 return;
4804 }
4805
4806 p2p_dbg(p2p, "Extended Listen timeout");
4807
4808 p2p->ext_listen_only = 1;
4809 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
4810 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
4811 p2p->ext_listen_only = 0;
4812 }
4813 }
4814
4815
4816 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
4817 unsigned int interval)
4818 {
4819 if (period > 65535 || interval > 65535 || period > interval ||
4820 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
4821 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
4822 period, interval);
4823 return -1;
4824 }
4825
4826 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
4827
4828 if (interval == 0) {
4829 p2p_dbg(p2p, "Disabling Extended Listen Timing");
4830
4831 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4832 p2p->enable_ext_listen = FALSE;
4833 #endif
4834 p2p->ext_listen_period = 0;
4835 p2p->ext_listen_interval = 0;
4836 return 0;
4837 }
4838
4839 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4840 period, interval);
4841
4842 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4843 p2p->enable_ext_listen = TRUE;
4844 p2p->on_op_channel_listen = FALSE;
4845 p2p->cfg->channel = p2p->original_listen_channel;
4846 p2p->cfg->reg_class = p2p->original_reg_class;
4847 #endif
4848 p2p->ext_listen_period = period;
4849 p2p->ext_listen_interval = interval;
4850 p2p->ext_listen_interval_sec = interval / 1000;
4851 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
4852
4853 eloop_register_timeout(p2p->ext_listen_interval_sec,
4854 p2p->ext_listen_interval_usec,
4855 p2p_ext_listen_timeout, p2p, NULL);
4856
4857 return 0;
4858 }
4859
4860
4861 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4862 const u8 *ie, size_t ie_len)
4863 {
4864 struct p2p_message msg;
4865
4866 if (bssid == NULL || ie == NULL)
4867 return;
4868
4869 os_memset(&msg, 0, sizeof(msg));
4870 if (p2p_parse_ies(ie, ie_len, &msg))
4871 return;
4872 if (msg.minor_reason_code == NULL) {
4873 p2p_parse_free(&msg);
4874 return;
4875 }
4876
4877 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR_SEC
4878 " reason_code=%u minor_reason_code=%u",
4879 MAC2STR_SEC(bssid), reason_code, *msg.minor_reason_code);
4880
4881 p2p_parse_free(&msg);
4882 }
4883
4884
4885 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
4886 const u8 *ie, size_t ie_len)
4887 {
4888 struct p2p_message msg;
4889
4890 if (bssid == NULL || ie == NULL)
4891 return;
4892
4893 os_memset(&msg, 0, sizeof(msg));
4894 if (p2p_parse_ies(ie, ie_len, &msg))
4895 return;
4896 if (msg.minor_reason_code == NULL) {
4897 p2p_parse_free(&msg);
4898 return;
4899 }
4900
4901 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR_SEC
4902 " reason_code=%u minor_reason_code=%u",
4903 MAC2STR_SEC(bssid), reason_code, *msg.minor_reason_code);
4904
4905 p2p_parse_free(&msg);
4906 }
4907
4908
4909 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
4910 {
4911 if (enabled) {
4912 p2p_dbg(p2p, "Managed P2P Device operations enabled");
4913 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
4914 } else {
4915 p2p_dbg(p2p, "Managed P2P Device operations disabled");
4916 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
4917 }
4918 }
4919
4920
4921 int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class,
4922 u8 *op_channel,
4923 struct wpa_freq_range_list *avoid_list,
4924 struct wpa_freq_range_list *disallow_list)
4925 {
4926 return p2p_channel_random_social(&p2p->channels, op_class, op_channel,
4927 avoid_list, disallow_list);
4928 }
4929
4930
4931 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
4932 u8 forced)
4933 {
4934 if (p2p_channel_to_freq(reg_class, channel) < 0)
4935 return -1;
4936
4937 /*
4938 * Listen channel was set in configuration or set by control interface;
4939 * cannot override it.
4940 */
4941 if (p2p->cfg->channel_forced && forced == 0) {
4942 p2p_dbg(p2p,
4943 "Listen channel was previously configured - do not override based on optimization");
4944 return -1;
4945 }
4946
4947 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
4948 reg_class, channel);
4949
4950 if (p2p->state == P2P_IDLE) {
4951 p2p->cfg->reg_class = reg_class;
4952 p2p->cfg->channel = channel;
4953 p2p->cfg->channel_forced = forced;
4954 } else {
4955 p2p_dbg(p2p, "Defer setting listen channel");
4956 p2p->pending_reg_class = reg_class;
4957 p2p->pending_channel = channel;
4958 p2p->pending_channel_forced = forced;
4959 }
4960
4961 #if defined(CONFIG_OPEN_HARMONY_PATCH) && defined(OPEN_HARMONY_MIRACAST_SINK_OPT)
4962 p2p->original_listen_channel = channel;
4963 p2p->original_reg_class = reg_class;
4964 #endif
4965 return 0;
4966 }
4967
4968
4969 u8 p2p_get_listen_channel(struct p2p_data *p2p)
4970 {
4971 return p2p->cfg->channel;
4972 }
4973
4974
4975 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
4976 {
4977 p2p_dbg(p2p, "New SSID postfix: %s", anonymize_ssid(wpa_ssid_txt(postfix, len)));
4978 if (postfix == NULL) {
4979 p2p->cfg->ssid_postfix_len = 0;
4980 return 0;
4981 }
4982 if (len > sizeof(p2p->cfg->ssid_postfix))
4983 return -1;
4984 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
4985 p2p->cfg->ssid_postfix_len = len;
4986 return 0;
4987 }
4988
4989
4990 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
4991 int cfg_op_channel)
4992 {
4993 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
4994 return -1;
4995
4996 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
4997 op_reg_class, op_channel);
4998 p2p->cfg->op_reg_class = op_reg_class;
4999 p2p->cfg->op_channel = op_channel;
5000 p2p->cfg->cfg_op_channel = cfg_op_channel;
5001 return 0;
5002 }
5003
5004
5005 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
5006 const struct p2p_channel *pref_chan)
5007 {
5008 struct p2p_channel *n;
5009
5010 if (pref_chan) {
5011 n = os_memdup(pref_chan,
5012 num_pref_chan * sizeof(struct p2p_channel));
5013 if (n == NULL)
5014 return -1;
5015 } else
5016 n = NULL;
5017
5018 os_free(p2p->cfg->pref_chan);
5019 p2p->cfg->pref_chan = n;
5020 p2p->cfg->num_pref_chan = num_pref_chan;
5021
5022 return 0;
5023 }
5024
5025
5026 int p2p_set_no_go_freq(struct p2p_data *p2p,
5027 const struct wpa_freq_range_list *list)
5028 {
5029 struct wpa_freq_range *tmp;
5030
5031 if (list == NULL || list->num == 0) {
5032 os_free(p2p->no_go_freq.range);
5033 p2p->no_go_freq.range = NULL;
5034 p2p->no_go_freq.num = 0;
5035 return 0;
5036 }
5037
5038 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
5039 if (tmp == NULL)
5040 return -1;
5041 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
5042 os_free(p2p->no_go_freq.range);
5043 p2p->no_go_freq.range = tmp;
5044 p2p->no_go_freq.num = list->num;
5045 p2p_dbg(p2p, "Updated no GO chan list");
5046
5047 return 0;
5048 }
5049
5050
5051 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
5052 u8 *iface_addr)
5053 {
5054 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
5055 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
5056 return -1;
5057 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
5058 return 0;
5059 }
5060
5061
5062 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
5063 u8 *dev_addr)
5064 {
5065 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
5066 if (dev == NULL)
5067 return -1;
5068 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
5069 return 0;
5070 }
5071
5072
5073 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
5074 {
5075 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
5076 if (is_zero_ether_addr(p2p->peer_filter))
5077 p2p_dbg(p2p, "Disable peer filter");
5078 else
5079 p2p_dbg(p2p, "Enable peer filter for " MACSTR_SEC,
5080 MAC2STR_SEC(p2p->peer_filter));
5081 }
5082
5083
5084 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
5085 {
5086 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
5087 if (p2p->cross_connect == enabled)
5088 return;
5089 p2p->cross_connect = enabled;
5090 /* TODO: may need to tear down any action group where we are GO(?) */
5091 }
5092
5093
5094 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
5095 {
5096 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
5097 if (dev == NULL)
5098 return -1;
5099 if (dev->oper_freq <= 0)
5100 return -1;
5101 return dev->oper_freq;
5102 }
5103
5104
5105 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
5106 {
5107 p2p_dbg(p2p, "Intra BSS distribution %s",
5108 enabled ? "enabled" : "disabled");
5109 p2p->cfg->p2p_intra_bss = enabled;
5110 }
5111
5112
5113 void p2p_update_channel_list(struct p2p_data *p2p,
5114 const struct p2p_channels *chan,
5115 const struct p2p_channels *cli_chan)
5116 {
5117 p2p_dbg(p2p, "Update channel list");
5118 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
5119 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
5120 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
5121 sizeof(struct p2p_channels));
5122 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
5123 }
5124
5125
5126 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
5127 const u8 *src, const u8 *bssid, const u8 *buf,
5128 size_t len, unsigned int wait_time)
5129 {
5130 int res, scheduled;
5131
5132 res = p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
5133 buf, len, wait_time, &scheduled);
5134 #ifndef OPEN_HARMONY_MIRACAST_SINK_OPT
5135 if (res == 0 && scheduled && p2p->in_listen && freq > 0 &&
5136 p2p->drv_in_listen > 0 &&
5137 (unsigned int) p2p->drv_in_listen != freq) {
5138 p2p_dbg(p2p,
5139 "Stop listen on %d MHz to allow a frame to be sent immediately on %d MHz",
5140 p2p->drv_in_listen, freq);
5141 p2p_stop_listen_for_freq(p2p, freq);
5142 }
5143 #endif
5144 return res;
5145 }
5146
5147
5148 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
5149 int freq_overall)
5150 {
5151 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
5152 freq_24, freq_5, freq_overall);
5153 p2p->best_freq_24 = freq_24;
5154 p2p->best_freq_5 = freq_5;
5155 p2p->best_freq_overall = freq_overall;
5156 }
5157
5158
5159 void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
5160 {
5161 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
5162 p2p->own_freq_preference = freq;
5163 }
5164
5165
5166 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
5167 {
5168 if (p2p == NULL || p2p->go_neg_peer == NULL)
5169 return NULL;
5170 return p2p->go_neg_peer->info.p2p_device_addr;
5171 }
5172
5173
5174 const struct p2p_peer_info *
5175 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
5176 {
5177 struct p2p_device *dev;
5178
5179 if (addr) {
5180 dev = p2p_get_device(p2p, addr);
5181 if (!dev)
5182 return NULL;
5183
5184 if (!next) {
5185 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
5186 return NULL;
5187
5188 return &dev->info;
5189 } else {
5190 do {
5191 dev = dl_list_first(&dev->list,
5192 struct p2p_device,
5193 list);
5194 if (!dev || &dev->list == &p2p->devices)
5195 return NULL;
5196 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
5197 }
5198 } else {
5199 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
5200 if (!dev)
5201 return NULL;
5202 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
5203 dev = dl_list_first(&dev->list,
5204 struct p2p_device,
5205 list);
5206 if (!dev || &dev->list == &p2p->devices)
5207 return NULL;
5208 }
5209 }
5210
5211 return &dev->info;
5212 }
5213
5214
5215 int p2p_in_progress(struct p2p_data *p2p)
5216 {
5217 if (p2p == NULL)
5218 return 0;
5219 if (p2p->state == P2P_SEARCH)
5220 return 2;
5221 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
5222 }
5223
5224
5225 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
5226 u8 client_timeout)
5227 {
5228 if (p2p) {
5229 p2p->go_timeout = go_timeout;
5230 p2p->client_timeout = client_timeout;
5231 }
5232 }
5233
5234
5235 #ifdef CONFIG_WIFI_DISPLAY
5236
5237 static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
5238 {
5239 size_t g;
5240 struct p2p_group *group;
5241
5242 for (g = 0; g < p2p->num_groups; g++) {
5243 group = p2p->groups[g];
5244 p2p_group_force_beacon_update_ies(group);
5245 }
5246 }
5247
5248
5249 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
5250 {
5251 wpabuf_free(p2p->wfd_ie_beacon);
5252 p2p->wfd_ie_beacon = ie;
5253 p2p_update_wfd_ie_groups(p2p);
5254 return 0;
5255 }
5256
5257
5258 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
5259 {
5260 wpabuf_free(p2p->wfd_ie_probe_req);
5261 p2p->wfd_ie_probe_req = ie;
5262 return 0;
5263 }
5264
5265
5266 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
5267 {
5268 wpabuf_free(p2p->wfd_ie_probe_resp);
5269 p2p->wfd_ie_probe_resp = ie;
5270 p2p_update_wfd_ie_groups(p2p);
5271 return 0;
5272 }
5273
5274
5275 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
5276 {
5277 wpabuf_free(p2p->wfd_ie_assoc_req);
5278 p2p->wfd_ie_assoc_req = ie;
5279 return 0;
5280 }
5281
5282
5283 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
5284 {
5285 wpabuf_free(p2p->wfd_ie_invitation);
5286 p2p->wfd_ie_invitation = ie;
5287 return 0;
5288 }
5289
5290
5291 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
5292 {
5293 wpabuf_free(p2p->wfd_ie_prov_disc_req);
5294 p2p->wfd_ie_prov_disc_req = ie;
5295 return 0;
5296 }
5297
5298
5299 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
5300 {
5301 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
5302 p2p->wfd_ie_prov_disc_resp = ie;
5303 return 0;
5304 }
5305
5306
5307 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
5308 {
5309 wpabuf_free(p2p->wfd_ie_go_neg);
5310 p2p->wfd_ie_go_neg = ie;
5311 return 0;
5312 }
5313
5314
5315 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
5316 {
5317 wpabuf_free(p2p->wfd_dev_info);
5318 if (elem) {
5319 p2p->wfd_dev_info = wpabuf_dup(elem);
5320 if (p2p->wfd_dev_info == NULL)
5321 return -1;
5322 } else
5323 p2p->wfd_dev_info = NULL;
5324
5325 return 0;
5326 }
5327
5328
5329 int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
5330 {
5331 wpabuf_free(p2p->wfd_r2_dev_info);
5332 if (elem) {
5333 p2p->wfd_r2_dev_info = wpabuf_dup(elem);
5334 if (p2p->wfd_r2_dev_info == NULL)
5335 return -1;
5336 } else
5337 p2p->wfd_r2_dev_info = NULL;
5338
5339 return 0;
5340 }
5341
5342
5343 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
5344 {
5345 wpabuf_free(p2p->wfd_assoc_bssid);
5346 if (elem) {
5347 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
5348 if (p2p->wfd_assoc_bssid == NULL)
5349 return -1;
5350 } else
5351 p2p->wfd_assoc_bssid = NULL;
5352
5353 return 0;
5354 }
5355
5356
5357 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
5358 const struct wpabuf *elem)
5359 {
5360 wpabuf_free(p2p->wfd_coupled_sink_info);
5361 if (elem) {
5362 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
5363 if (p2p->wfd_coupled_sink_info == NULL)
5364 return -1;
5365 } else
5366 p2p->wfd_coupled_sink_info = NULL;
5367
5368 return 0;
5369 }
5370
5371 #endif /* CONFIG_WIFI_DISPLAY */
5372
5373
5374 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
5375 int max_disc_tu)
5376 {
5377 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
5378 return -1;
5379
5380 p2p->min_disc_int = min_disc_int;
5381 p2p->max_disc_int = max_disc_int;
5382 p2p->max_disc_tu = max_disc_tu;
5383 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
5384 min_disc_int, max_disc_int, max_disc_tu);
5385
5386 return 0;
5387 }
5388
5389
5390 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
5391 {
5392 va_list ap;
5393 char buf[500];
5394
5395 if (!p2p->cfg->debug_print)
5396 return;
5397
5398 va_start(ap, fmt);
5399 vsnprintf(buf, sizeof(buf), fmt, ap);
5400 buf[sizeof(buf) - 1] = '\0';
5401 va_end(ap);
5402 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
5403 }
5404
5405
5406 void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
5407 {
5408 va_list ap;
5409 char buf[500];
5410
5411 if (!p2p->cfg->debug_print)
5412 return;
5413
5414 va_start(ap, fmt);
5415 vsnprintf(buf, sizeof(buf), fmt, ap);
5416 buf[sizeof(buf) - 1] = '\0';
5417 va_end(ap);
5418 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
5419 }
5420
5421
5422 void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
5423 {
5424 va_list ap;
5425 char buf[500];
5426
5427 if (!p2p->cfg->debug_print)
5428 return;
5429
5430 va_start(ap, fmt);
5431 vsnprintf(buf, sizeof(buf), fmt, ap);
5432 buf[sizeof(buf) - 1] = '\0';
5433 va_end(ap);
5434 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
5435 }
5436
5437
5438 void p2p_loop_on_known_peers(struct p2p_data *p2p,
5439 void (*peer_callback)(struct p2p_peer_info *peer,
5440 void *user_data),
5441 void *user_data)
5442 {
5443 struct p2p_device *dev, *n;
5444
5445 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
5446 peer_callback(&dev->info, user_data);
5447 }
5448 }
5449
5450
5451 #ifdef CONFIG_WPS_NFC
5452
5453 static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
5454 int client_freq,
5455 const u8 *go_dev_addr,
5456 const u8 *ssid, size_t ssid_len)
5457 {
5458 struct wpabuf *buf;
5459 u8 op_class, channel;
5460 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
5461
5462 buf = wpabuf_alloc(1000);
5463 if (buf == NULL)
5464 return NULL;
5465
5466 op_class = p2p->cfg->reg_class;
5467 channel = p2p->cfg->channel;
5468
5469 p2p_buf_add_capability(buf, p2p->dev_capab &
5470 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
5471 p2p_buf_add_device_info(buf, p2p, NULL);
5472
5473 if (p2p->num_groups > 0) {
5474 int freq = p2p_group_get_freq(p2p->groups[0]);
5475 role = P2P_GO_IN_A_GROUP;
5476 if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
5477 p2p_dbg(p2p,
5478 "Unknown GO operating frequency %d MHz for NFC handover",
5479 freq);
5480 wpabuf_free(buf);
5481 return NULL;
5482 }
5483 } else if (client_freq > 0) {
5484 role = P2P_CLIENT_IN_A_GROUP;
5485 if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
5486 p2p_dbg(p2p,
5487 "Unknown client operating frequency %d MHz for NFC handover",
5488 client_freq);
5489 wpabuf_free(buf);
5490 return NULL;
5491 }
5492 }
5493
5494 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
5495 channel, role);
5496
5497 if (p2p->num_groups > 0) {
5498 /* Limit number of clients to avoid very long message */
5499 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
5500 p2p_group_buf_add_id(p2p->groups[0], buf);
5501 } else if (client_freq > 0 &&
5502 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
5503 ssid && ssid_len > 0) {
5504 /*
5505 * Add the optional P2P Group ID to indicate in which group this
5506 * device is a P2P Client.
5507 */
5508 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
5509 }
5510
5511 return buf;
5512 }
5513
5514
5515 struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
5516 int client_freq,
5517 const u8 *go_dev_addr,
5518 const u8 *ssid, size_t ssid_len)
5519 {
5520 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5521 ssid_len);
5522 }
5523
5524
5525 struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
5526 int client_freq,
5527 const u8 *go_dev_addr,
5528 const u8 *ssid, size_t ssid_len)
5529 {
5530 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
5531 ssid_len);
5532 }
5533
5534
5535 int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
5536 struct p2p_nfc_params *params)
5537 {
5538 struct p2p_message msg;
5539 struct p2p_device *dev;
5540 const u8 *p2p_dev_addr;
5541 int freq;
5542 enum p2p_role_indication role;
5543
5544 params->next_step = NO_ACTION;
5545
5546 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
5547 params->p2p_attr, params->p2p_len, &msg)) {
5548 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
5549 p2p_parse_free(&msg);
5550 return -1;
5551 }
5552
5553 if (msg.p2p_device_addr)
5554 p2p_dev_addr = msg.p2p_device_addr;
5555 else if (msg.device_id)
5556 p2p_dev_addr = msg.device_id;
5557 else {
5558 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
5559 p2p_parse_free(&msg);
5560 return -1;
5561 }
5562
5563 if (msg.oob_dev_password) {
5564 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
5565 msg.oob_dev_password_len);
5566 params->oob_dev_pw_len = msg.oob_dev_password_len;
5567 }
5568
5569 dev = p2p_create_device(p2p, p2p_dev_addr);
5570 if (dev == NULL) {
5571 p2p_parse_free(&msg);
5572 return -1;
5573 }
5574
5575 params->peer = &dev->info;
5576
5577 os_get_reltime(&dev->last_seen);
5578 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
5579 p2p_copy_wps_info(p2p, dev, 0, &msg);
5580
5581 if (!msg.oob_go_neg_channel) {
5582 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
5583 p2p_parse_free(&msg);
5584 return -1;
5585 }
5586
5587 if (msg.oob_go_neg_channel[3] == 0 &&
5588 msg.oob_go_neg_channel[4] == 0)
5589 freq = 0;
5590 else
5591 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
5592 msg.oob_go_neg_channel[4]);
5593 if (freq < 0) {
5594 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
5595 p2p_parse_free(&msg);
5596 return -1;
5597 }
5598 role = msg.oob_go_neg_channel[5];
5599
5600 if (role == P2P_GO_IN_A_GROUP) {
5601 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
5602 params->go_freq = freq;
5603 } else if (role == P2P_CLIENT_IN_A_GROUP) {
5604 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
5605 freq);
5606 params->go_freq = freq;
5607 } else
5608 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
5609 dev->oob_go_neg_freq = freq;
5610
5611 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
5612 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
5613 p2p->cfg->channel);
5614 if (freq < 0) {
5615 p2p_dbg(p2p, "Own listen channel not known");
5616 p2p_parse_free(&msg);
5617 return -1;
5618 }
5619 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
5620 dev->oob_go_neg_freq = freq;
5621 }
5622
5623 if (msg.group_id) {
5624 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
5625 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
5626 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
5627 params->go_ssid_len);
5628 }
5629
5630 if (dev->flags & P2P_DEV_USER_REJECTED) {
5631 p2p_dbg(p2p, "Do not report rejected device");
5632 p2p_parse_free(&msg);
5633 return 0;
5634 }
5635
5636 if (!(dev->flags & P2P_DEV_REPORTED)) {
5637 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
5638 !(dev->flags & P2P_DEV_REPORTED_ONCE));
5639 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
5640 }
5641 p2p_parse_free(&msg);
5642
5643 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
5644 params->next_step = BOTH_GO;
5645 else if (role == P2P_GO_IN_A_GROUP)
5646 params->next_step = JOIN_GROUP;
5647 else if (role == P2P_CLIENT_IN_A_GROUP) {
5648 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
5649 params->next_step = PEER_CLIENT;
5650 } else if (p2p->num_groups > 0)
5651 params->next_step = AUTH_JOIN;
5652 else if (params->sel)
5653 params->next_step = INIT_GO_NEG;
5654 else
5655 params->next_step = RESP_GO_NEG;
5656
5657 return 0;
5658 }
5659
5660
5661 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
5662 int go_intent,
5663 const u8 *own_interface_addr)
5664 {
5665
5666 p2p->authorized_oob_dev_pw_id = dev_pw_id;
5667 if (dev_pw_id == 0) {
5668 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
5669 return;
5670 }
5671
5672 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
5673 dev_pw_id);
5674
5675 p2p->go_intent = go_intent;
5676 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
5677 }
5678
5679 #endif /* CONFIG_WPS_NFC */
5680
5681
5682 int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len)
5683 {
5684 if (len < 8 || len > 63)
5685 return -1;
5686 p2p->cfg->passphrase_len = len;
5687 return 0;
5688 }
5689
5690
5691 void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem)
5692 {
5693 p2p->vendor_elem = vendor_elem;
5694 }
5695
5696
5697 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx)
5698 {
5699 struct p2p_data *p2p = eloop_ctx;
5700
5701 p2p_dbg(p2p,
5702 "Timeout on waiting peer to become ready for GO Negotiation");
5703 #ifdef HARMONY_P2P_CONNECTIVITY_PATCH
5704 if (p2p->go_neg_peer)
5705 p2p_go_neg_failed(p2p, -1);
5706 #else
5707 p2p_go_neg_failed(p2p, -1);
5708 #endif
5709 }
5710
5711
5712 void p2p_set_own_pref_freq_list(struct p2p_data *p2p,
5713 const unsigned int *pref_freq_list,
5714 unsigned int size)
5715 {
5716 unsigned int i;
5717
5718 if (size > P2P_MAX_PREF_CHANNELS)
5719 size = P2P_MAX_PREF_CHANNELS;
5720 p2p->num_pref_freq = size;
5721 for (i = 0; i < size; i++) {
5722 p2p->pref_freq_list[i] = pref_freq_list[i];
5723 p2p_dbg(p2p, "Own preferred frequency list[%u]=%u MHz",
5724 i, p2p->pref_freq_list[i]);
5725 }
5726 }
5727
5728
5729 void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class,
5730 u8 chan)
5731 {
5732 p2p->override_pref_op_class = op_class;
5733 p2p->override_pref_channel = chan;
5734 }
5735
5736
5737 struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p,
5738 unsigned int freq)
5739 {
5740 struct wpabuf *ies, *buf;
5741 u8 addr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
5742 int ret;
5743
5744 ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
5745 if (!ies) {
5746 wpa_printf(MSG_ERROR,
5747 "CTRL: Failed to build Probe Response IEs");
5748 return NULL;
5749 }
5750
5751 buf = wpabuf_alloc(200 + wpabuf_len(ies));
5752 if (!buf) {
5753 wpabuf_free(ies);
5754 return NULL;
5755 }
5756
5757 ret = p2p_build_probe_resp_buf(p2p, buf, ies, addr, freq);
5758 wpabuf_free(ies);
5759 if (ret) {
5760 wpabuf_free(buf);
5761 return NULL;
5762 }
5763
5764 return buf;
5765 }
5766
5767
5768 bool p2p_is_peer_6ghz_capab(struct p2p_data *p2p, const u8 *addr)
5769 {
5770 struct p2p_device *dev;
5771
5772 dev = p2p_get_device(p2p, addr);
5773 if (!dev)
5774 return false;
5775
5776 return !!(dev->info.dev_capab & P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE);
5777 }
5778
5779
5780 void p2p_set_6ghz_dev_capab(struct p2p_data *p2p, bool allow_6ghz)
5781 {
5782 p2p->p2p_6ghz_capable = allow_6ghz;
5783 p2p->allow_6ghz = allow_6ghz;
5784 p2p_dbg(p2p, "Set 6 GHz capability to %d", allow_6ghz);
5785
5786 if (allow_6ghz)
5787 p2p->dev_capab |= P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE;
5788 else
5789 p2p->dev_capab &= ~P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE;
5790 }
5791
5792
5793 bool is_p2p_6ghz_capable(struct p2p_data *p2p)
5794 {
5795 return p2p->p2p_6ghz_capable;
5796 }
5797
5798
5799 bool p2p_wfd_enabled(struct p2p_data *p2p)
5800 {
5801 #ifdef CONFIG_WIFI_DISPLAY
5802 return p2p->wfd_ie_probe_req != NULL;
5803 #else /* CONFIG_WIFI_DISPLAY */
5804 return false;
5805 #endif /* CONFIG_WIFI_DISPLAY */
5806 }
5807
5808
5809 bool p2p_peer_wfd_enabled(struct p2p_data *p2p, const u8 *peer_addr)
5810 {
5811 #ifdef CONFIG_WIFI_DISPLAY
5812 struct p2p_device *dev;
5813
5814 dev = p2p_get_device(p2p, peer_addr);
5815 return dev && dev->info.wfd_subelems != NULL;
5816 #else /* CONFIG_WIFI_DISPLAY */
5817 return false;
5818 #endif /* CONFIG_WIFI_DISPLAY */
5819 }
5820
5821
5822 bool is_p2p_allow_6ghz(struct p2p_data *p2p)
5823 {
5824 return p2p->allow_6ghz;
5825 }
5826
5827
5828 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value)
5829 {
5830 p2p->allow_6ghz = value;
5831 }
5832
5833 #ifdef HARMONY_CONNECTIVITY_PATCH
5834 #ifndef OPEN_HARMONY_MIRACAST_SINK_OPT
5835 int p2p_get_persistent_group_need_remove_flag(struct p2p_data *p2p)
5836 {
5837 #ifndef HW_WPA_REDUCE_LOG
5838 p2p_dbg(p2p, "get persistent_group_need_remove = %d",
5839 p2p->persistent_group_need_remove);
5840 #endif
5841 return p2p->persistent_group_need_remove;
5842 }
5843
5844 void p2p_set_persistent_group_need_remove_flag(struct p2p_data *p2p, int value)
5845 {
5846 #ifndef HW_WPA_REDUCE_LOG
5847 p2p_dbg(p2p, "set persistent_group_need_remove = %d",
5848 p2p->persistent_group_need_remove);
5849 #endif
5850 p2p->persistent_group_need_remove = value;
5851 }
5852 #endif
5853 #endif